
- Yeonwoo having another baby is already a side story, but novel only for now.
- Twins? The only twins are Grayson and Stacy. If you mean Pete and Cecil, Pete is 3-4 years older than Cecil. There is also a side story when they met Spence the first time, but also novel only at the moment. But Pete appears in Kiss me if you can.
-Josh and the baby Daddy (Chase) that their own novel and a manhawa adaption which is on hiatus right now.
- Dane the extreme /dominant omega fireman who normaly tops, is paired with Grayson (who at the moment works as a fireman too.:D), who's webnovel is ongoing at the moment.
- The other two Miller brother will have their own novel in the future.

Thanks.
I know there is more stuff in the novel with some of the answers. But I need it in manga form because I do not have to time to hunt down the novel and then find time to read it.
Does Yeonwoo have a boy or girl?
I didn’t know they weren’t fraternal twins but siblings of different ages. In the manga the look like the same age. It’s alluded to that Cecil is a cross dressing boy. Is this true. It seems like they Cecil is jealous of Pete spending time with Spencer. Do they both have crushes on Spencer? What’s the deal? Chase was with Abigail who was Keith’s rotation girlfriend right? But Abigail is Beta right? So Chase swing all ways, right?
I didn’t know Grayson had a twin.
I read that Josh was with one of the Miller brothers. Pete and Cecil are their kids right? I guess Pete was the Josh was pregnant with when he first met Yeonwoo. What is the Manhawa with them.?
Is Dane (not Jax ) on par with Keith as extreme/dominant alphas? Isn’t Grayson an Alpha too? I am very interested in this side story
Who are the other Miller brother? Are you taking about brothers of Chase? Or Pete and Cecil? Does it involve Spencer?
I am interested in Emma and the newbie she was having a hard time with. I don’t know why we cannot get it in one managa.There is this one Manga which has gone through two generations. I read most of it before I lost interest because it didn’t make any sense anymore. But with this story all the side stories make sense to everything that happened between Keith and Yeonwoo.

That wasn't mentioned, most likely in the coming side stories.
You know that "Kiss me of you can" has a manhwa adaption? It's on a longer hiatus right now. There you see that only Pete exists, and he looks ~2-3+ years old. https://www.mangago.zone/read-manga/kiss_me_if_you_can/
Cecil, that he crossdresses is Josh and Spence's fault. Josh likes to dress Cecil in cute clothes, because he looks a lot like Chase. And Josh had a crush on Chase when he was in a commercial when he was a kid, dressed as a little girl.
When Spence met Pete and Cecil the first time, he was visiting Josh with Yeonwoo. He mistook Cecil for a girl, and iicr talked to him in a motivation way, when he was struggeling with that kind of clothes. Actually for Spence Pete was a prince and Cecil a princess. At least that strange meeting made the Miller kids taken with Spence.
Are you confusing Grayson with Chase? Chase is "Joshua-Sexual"^^, the only person he ever had sex with was/is Josh.
Pete and Cecil's extreme alpha father is Chase Miller, he is the actor Keith had problem with. Josh worked as his bodyguard. Pete was conceived a few year earlier, when they worked for Chase Miller before.
I linked the manhwa above, it takes place around the same time as Kiss me Liar. You'll see Pete there, Spence isn't even born.
Dane is an extreme omega (like Keith's father Angel and the Millers father Koi), readers who followed the author knew that for years, because he was planned for Grayson's story.
Extreme omegas have controle over their pheromones and can be easily mistaken for a beta. They can even knock out extreme alphas with their pheromones.
Grayson is an extreme alpha, he is even worse off than Keith, because he was born that way, so he can't feel emotions and can't understand emotions. His father made him learn to read emotions of others and try to imitate emotions. Dane is trying to teach him now.
They have their own webnovel (Desire me if you can), it is ongoing in korean at the moment.
Chase's siblings, in order:
-Nathaniel: male, extreme alpha
-Grayson: male, extreme alpha
-Stacy: female and Grayson's twin, extreme alpha
-Chase: male, extreme alpha (the only one of the extreme alpha siblings who presented late and always had emotions)
-Larien: female, extreme alpha
-Bliss: male, extreme omega
I don't know, the author hasn't planned any stories for the females, most likely preferes to write Bls.
There is so much potential for more story.
Side story of Jax the studly fireman and his revolving door of One night stands
The twins
Josh and his baby daddy
The twins
Yeonwoo having another baby
Emma and the newbie
The Miller brothers
So many unanswered questions that I need answers to…