Drip Your Heart
Kuromine is a succubus teacher, and his student Touno fucks him.
Kimi To Date
Tsuge meets Nagano at a low point in his life, and begrudgingly agrees to accept his help. A year later, hes head over heels for his now-boss. Theyve been dating for two months, and Tsuge really wants to take Nagano out on a date. (I think it wouldve been cuter without the sex scenes -__-)
Portrait (natsume Kazuki)
Aoi's best friend is an older boy, Kou-chan, who sees him as a little brother. Which sucks for Aoi, because he's always been in love with Kou.
Doushiyoumo Nai Keredo
1-6, 9.3-10. Shimano's life is pretty easy, except for when it comes to his manager, Kurokawa. But after he finds out that Kurokawa's life is harder than it seems, he softens up and they start dating. They navigate the twists and turns of their relationship. 7-9.2. Daisuke bumps into Keita, an old classmate who he used to have a crush on (and tease). He ends up having to work at Keita's flowershop to pay off a debt, where he falls in love all over again. [6.1 - Crossover with No Color. 9.7 - Crossover with Ameiro Paradox]
Love-letter Of Flowers
[I dont rlly like teacher/high school student stories unless the age gap is very small, so most of these werent my cup of tea] 1/5.5. A new music teacher isn't well liked until a student, Kino, applauds him, and starts secretly confessing to him with oragami flowers. 2. Sakaki catches a student, Mikami, rifling through his things amd blackmails him into kissing. Mikami turns the tables 3. Sensei doesnt get along with Kinoshita, a student, who's always flirting with him. But when he falls ill and Kinoshita takes care of him, he realizes his feelings. 4. Kigawa goes to the library every day, just so he can see his one-sided crush. There he meets Adachi, an idiot underclassman, who begs for help studying, and confesses to Kigawa. 5. Otsukawa is a 28 year old virgin, despite being popular with women. His coworker, Komoto, confesses to him, and he accepts, planning on using Komoto to get experience before dumping him... But falls for him instead.
Miwaku No Ringo
Ichijou is the son of a powerful family, annoyed by the sucking up he constantly recieves. But his new homeroom teacher, Hayashi Satoru ("Ringo"), doesnt seem to care about Ichijou's status... And actually seems to dislike Ichijou himself. Ichijou works hard to win Ringo over, fighting with other students and teachers alike.
Suki ni Nattara Dame desu ka?
Shiraishi teases Natori, his teacher, saying he must like guys. To quell Natori's anxiety over being found out, Shiraishi comes out to him as well. They begin developing a strong relationship, and start officially dating when Shiraishi graduates [nsfw only after Shiraishi has graduated]
Suki de Shikatanai
1. Isoyama is a college student with a crush on his teacher, Shiratsuka. Shiratsuka tells him hes confused, and then r*pes him to prove his point, telling him he's a bother. Then he feels bad and gets a tragic backstory. Personally I think all rapists should die <3 2+4. Momozono tries to get over his feelings for Isoyama, and meets a playful boy named Kuwana, who wants to help him get over Isoyama 3. After Momozono moves dorms, Yone gets a new roommate-- Fuseya, Yone's monopolizing ex boyfriend from high school. After they fight, Fuseya agrees to change his old ways.
Love Me Or I'll Kick Your Ass!!!