
I would also like to add that all Noapi members, even though Czerny and Flat may not seem like it, are very hostile to others. The reason they accept Jin Hyo-seop as their guide is because he's Jin Hyo-Seop. A genuine person. The scene where Jin Hyo-seop said that "he doesn't think the Noapi members are bad, that's why he isn't scared" contributed a lot. After he said that, they were speechless and then they suddenly felt someone's presence nearing the office, Flat and Czerny entered a combat stance. Flat even turned his body as if protecting Jin Hyo,-seop. Of course, Andante got jealous. There's a also another scene where Czerny and Flat were conversing with each other and they noted that it is rare for Coda to like someone. Coda didn't even talk to Czerny for a year (if I remember right) because their personalities clash. As for the twins, Dorian and Lydian, I think the scene that gave me a strong impression with their affection for Jin Hyo-seop is when they all thought MC died, it is said that they very sad. As for Cindy, (the quiet one) he doesn't really sit well with me. I never liked him. But maybe, others will so please don't be too affected with my opinion about him.

You're welcome! But Andante never planned to take a drug to forget Jin Hyo-seop. Omg, I don't remember mentioning something like this in my spoilers? Did I mess up? Are you perhaps confusing the time where Jin Hyo-seop injected Andante a tranquilizer with hallucinogens that's why he couldn't tell whether it was really Jin Hyo-seop who guided him when he was in the verge of berserk?
Oh, my name came from my childhood anime, Fairy Tail, hehe. But what is the title of the manhwa?

He doesn't have the luxury to react to that thing as he also can't do anything with what what happened. The guild BETEL that Jin Hyo-seop used to belong to already disbanded a long time ago. Detri (the A-Class esper who forcibly imprinted MC) already dead so Andante can't really avenge him. However, note that Andante was really, really violent about everything concerning Jin Hyo-seop when he thought he was dead. Beating Shin Hae-chang, almost killing Eugene and fighting with his guild members. Here also enters Coda and MC friendship. I don't know if you've read my other replies but there's a scene where Czerny and Flat were conversing with each other and they noted that it is rare for Coda to like someone. Coda didn't even talk to Czerny for a year (if I remember right) because their personalities clash. He platonically liked Jin Hyo-seop so much that he even fought with Andante and Andante ended up physically harming him. Coda was mentioned to be the most loyal and obedient to Andante and has been with him the longest. But Coda doesn't want Jin Hyo-seop to suffer the same as Ano who died partly because of Andante. Another things is Coda was the only one (aside from Shin Hae-chang who helped Jin Hyo-seop with a greedy plan in mind) who knows that Jin Hyo-seop was the one who guided Andante when he was in the verge of going berserk.

Shin Hae-chang is the leader of NSA (National Security Agency), the top guild in Korea before Noapi went into the picture. He sees Andante as his rival and has an inferiority complex due to the fact that Andante was born with a golden spoon while he was born into a poor family. If you've read the manhwa, he appeared here. https://www.mangago.zone/read-manga/honey_coated_s_class_guide/uu/br_chapter-229214/pg-1/
Later on, he will try to persuade MC to share/betray everything he knows about the Noapi guild especially Andante.

https://toonkor431.com/꿀_발린_S급_가이드_29화.html can i ask about the guy with long hair who obviously likes ML? how does ML feel about him? why was he about to kiss him? did they do the deed? I need spoilers about this
Did ML sleep with other guides??? Does ML get jealous? i want to know how ML suffers (this will be my motivation to keep reading bc so far he makes me angry)

His name is Eugene and no, Eugene doesn't like Andante that way. Eugene is only clinging to Andante due to the fact that he still felt attracted to to him even though Andante is only C-class (he doesn't know Andante true rank yet). Eugene used to be Andante's guide while they were in the center and they shared childhood together somehow there. Andante first manifested as S-Class there. However, he dropped Andante when Andante got tested again and only appeared C-class (obviously, this is a lie). Andante has no feelings for him. He only went and did this because it's been a while since he had guidance. They won't sleep together either.
As for your question whether ML sleeps with other guides: he does before but it's been so long since he stopped since he doesn't feel satisfied by it and it only stresses him out. Whenever he receives guidance, it can only last for barely a day so he thought to himself that's it's better to not involve himself with that kinda thing at all. Moreover, he has a condition called reverse guiding so even S-Class guides can't handle him well and they would faint and this scene exhausts him mentally. Yes, there was a lot of scenes where Andante got jealous. One scene is where Jin Hyo-seop kissed Cindy to guide Cindy (with no malice) as it is mentioned before that guiding and personal things should be separate but obviously, Andante got jelly.
Have you read my second part for spoilers? I indicated there somehow how ML suffered. You can find it in one of my replies here. And don't worry, I loathed him before as well and he will fucking suffer a lot that even I didn't almost continue reading it anymore before due to the suffering he had.

You will also come to love Eugene! I LOVE HIM NOW but yeah, it took a while because he will attempt to sow discord between MC and ML many times. When he dropped Andante, he switched to Shin Hae-chang. He may be a bit greedy but Eugene and MC will became enemies to friends later when they spend time together at National Security Agency guild during the SS-class Dungeon fight. He will support MC at leaving Andante and persuade hint never show himself again to Andante as Eugene himself experienced the way guides are treated harshly. He will genuinely care for MC as he realized Jin Hyo-seop is a very pure and kind person after all.
What is up with these people already concluding it is bad? Have you completely read the novel? It has 4.8 rating in Ridibooks and when I finished it is actually A VERY GOOD READ.
It was very shaky at first but then everything became significantly better when the events regarding the entering of SS-Class Dungeon started. Around 90s chapter in novel, I think. I admit that it was quite boring at first half but it gets better until the end.
Regarding the ML, I hated him to my guts before the SS-Class Dungeon arc started. He is very sly. A complete bastard. But God! When Jin Hyo-Seop ran away and when he realized his feelings, his character turned 360 degrees. This story will tackle how obsession and love are different things. And how LOVE is what actually Andante felt, not just obsession unlike other MLs. But yeah, I think he's still somehow obsessed, just has discipline. He is willing to give up everything for Jin Hyo-Seop. Willing to go berserk, willing to give the 1st guild ranking, willing to never enter dungeon again as MC don't like danger, etc. If you will ask me, this belongs to my top 10 groveling MLs where the ML actually suffered. A LOT. He was even planning to move to Argentina, an uninhabited place, just to never see Jin Hyo-Seop again and let him live freely and happily. Anyway, the bad thing about him is that he doesn't care for the world nor the safety of the citizens. In people's fantasy, "a villain who will sacrifice the world for his lover."
As for Jin Hyo-Seop, his character is very frustrating for some. Not for me. His coward and timid attitude will be validated by his experience with an esper who forcibly imprinted on him. This is not his ex-lover but someone who took advantage of his guilt for not offering 'deep guiding' to his older brother (the guild leader of the guild Hyo-Seop first belong to which is called BETEL). He was 14 that time when this bastard esper asked him for such guiding. But at the very end, Jin Hyo-Seop had the courage to finally do things his way and what he wanted, with Andante (ML) respecting it.
SUMMARY SPOILERS
•MC Jin Hyo-Seop joined Noapi Guild
•All Noapi guild members are S-Class
•Andante refuses guiding due to the fact that no other guides can heal him completely, thus, the scars. He also has a bad condition called "Reverse/Forced Guiding," something bad for guides.
•MC said that he doesn't think the Noapi guild members are bad, which made them speechless and warm up to him.
•When Andante and Jin Hyo-seop first slept together, Andante realized how amazing Hyo-seop's abilities are. So, when they went back to the guild office, he introduced MC as his lover, something he decided on his own. MC at the time didn't even know. LOL. Guild members know that Andante is only doing this to keep MC by their side as MC is the only one who can perfectly guide him.
•Chaos started when it is said in a gathering of guilds that several stone slabs from dungeons all over the world are missing and Shin Haechang, the speaker, put a bounty of 10 billion won to whoever will catch the criminals.
•Shin Haechang knows deep inside that it is Andante's guild they are looking for.
•An SS-Class Dungeon was predicted to appear again. It first appeared 60/70 years ago, second time is 10 years ago.
•Andante told MC that they are collecting the stone slabs because they will use it to forcibly predict/open the SS-Class Dungeon again even if it is only supposed to appear again 50/60 later. However, the guild members will be old by then and not much powerful.
•No one is able to defeat SS-Class Dungeon 60/70 years causing huge damage. 10 years ago, it appeared again and everyone thought it will be defeated because most capable S-Class Espers gathered and entered the dungeon lead by 'Owen,' once in a century "SS-Class esper." However, it failed again. Only some Espers survived and the ones who survived all went berserk not long after. Hope was lost when Owen, the greatest hero, also perished.
•Everyone is afraid to face the SS-Class Dungeon that appeared today, considering the berserk spree that happened and how much S-Class Espers are lost from each country 10 years ago. Much more that Owen is already gone.
•When a world meeting was conducted regarding how to deal with SS-Class Dungeon, Andante, who is uninvited, interfered using only his audio and said that he is the underworld leader who took over the underworld 9 years ago. As everyone is afraid to face the dungeon this time, he made an offer that he, the unknown underworld leader, with his members will enter the SS-Class Dungeon first and be the sacrifice.
•Shin Haechang, the one representing Korea at the meeting, was mad as he knows that it is his rival Andante speaking. However, when he met Andante after the meeting, he changed his mind about not supporting him, as Andante said that he recognized Shin Haechang as his 'fan.' Andante requested that they allow them to hide their identities to public.
•SS-class dungeon finally opened and the fight inside the dungeon was broadcast to selected people only. MC doesn't belong to those selected people so he is very anxious. Noapi members with cloaks and masks, entered. They first battled with monsters that look like themselves. Second are various monsters and finally, the boss. During the second and final phase of fighting, the fight is suddenly broadcasted live on TV with now everyone around the world witnessing it.
•Everyone can now see how the Noapi members fight, with all of their masks taken off except for Andante, whose mask was not scratched at all.
•While fighting the boss, members are already at disadvantage except for Coda and Andante. Surprisingly, Coda is visibly super angry, unlike his usual calm self, and everyone knows that he is about to go berserk due to his golden eyes. Andante calmed him down and left the fight to Andante.
•The tides are on Andante and everyone was on awe as they realized Andante has two abilities. Usually, Espers have only one. Near the end of fight, Andante got stabbed in stomach with the the claws but he knows that the monsters' weakness is it's shell so he focused on that, tearing each shell parts of the monster one by one. During this, the monster tried to withdraw his claws from Andante's stomach and touched his mask. As the monster do this, the last shell, placed on its head, shattered with Andante's strength. Commonly, in order to defeat a boss, you have to rip its heart out. However, Andante gently picked up the monster and embraced it.
•Not long after, the shattered shell on monsters head peeled off. The unshelled monster changed into a human. Thin shoulders, long hair, and a slender body. Andante's hand affectionately stroked the man's hair. At the same time, Andante's mask fell off and he smiled at the person he is holding in a way that MC had never seen before. And then, Coda suddenly ran towards them followed by the other members who shouted "Ano/No" and then bowed their heads. Coda cried and hugged the man in his arms. (I personally cried here. It was such a beautiful moment. Goosebumps.)
•At that moment, everyone realized the same one, thing. 10 years ago, Owen's guide and the only guide of the LEOM Guild that used to be the number one in the world. Ano/No short for Anora. His codename PIANO. A SS-class guide that is first to enter a dungeon when the SS-Class Dungeon appeared 10 years ago and sacrificed himself to protect the Espers.
•NOAPI=PIANO. Jin Hyo-Seop realized this like everyone else. Now he understands the hostility of Cindy's split personality (the Noapi member who always quiet). The creation of the guild is solely for the existence of Ano. He thought to himself that he could never take his place and that is why he could never receive their affection and trust for each other. Remember that they hid a lot of things from Jin Hyoseop (Aww. My baby)
•Ano was Coda's lover.
•Leader Andante is SS-rank Owen. He has two abilities just like him and uses debuff power.
Anyway, this is all for the first half if anyone ever read this. Let me know if you need further spoilers or questions.