Yoonseul has dreams about Joon, a guy he harshly rejected in high school 10 years earlier, and becomes his friend in hopes that the dreams will stop. Yoonseul only realizes his feelings for Joon after hurting him again, but they eventually get together.
Hyunsoo transfers to a new department and meets Youngchan. They become fuck buddies, but after a while, Hyunsoo starts to open up to Youngchan. (Has subplots like Hyunsoo's mother, his mental health, etc.)
Haebom & Taesung are childhood friends that drifted apart. They end up in the same class & become friends again. They eventually start dating & go on to be a married couple with a bakery.
Karlyle is an alpha who has difficulty with sex. The family doctor suggests he have sex with Ash, another alpha. They both develop feelings, but Ash ignores them & ends up hurting Karlyle.
Main couples --> Jihyun & Yohan, Daeshik & Yosef
Jihyun has a condition that makes him really horny, and it makes him feel (& he's been told) that he was unlovable because of it. Yohan comes along & ends up being able to love & satisfy Jihyun.
Daeshik & Yosef's relationship starts when Daeshik starts to experiment with his sexuality, & it progresses from there. Daeshik got Yosef out of a gang & encouraged Yosef to be his best.
YuYang & LiHuan meet on bad terms, but start taking a liking to one another.
Kyujin has an interest in Chiwoo & tries to get to know him. Jihyun, Chiwoo's (not really) ex, is crazy & does everything he can to keep Chiwoo by his side. Jihyun ends up putting Chiwoo in the hospital, & their 'relationship' ends. This gives Kyujin & Chiwoo's new relationship room to grow, & they eventually get together.
The Third Ending