Harsh and/or Possessive Seme/soft uke

Uke has fallen in love with a freshman but he was traumatized by his previous confession. He keeps his secret and ended up treating seme harshly. One day, he fainted and saw seme's jacket is left behind. He jerked off with it until he was caught in act by seme. Seme wants uke to continue jerking and decided to become his partner. Since seme isn't a gay, they wouldn't have sex.

BOXER SEME x THERAPIST UKE, HEIGHT GAP
Joo Jaekyung, is a the reigning light heavy weight champion of an international tournament. infamously known as tyrant in the ring & the world's strongest man. That's all Kim Dan(29), a physical therapist knows about his new VIP patient. While being nervous on his first day at the gym center he learned how the temperamental Joo Jaekyung knocked down his previous therapist which made him more anxious.
Seme has a jinx where he needs sex before match to win.

A serious student, "Shiraishi Makoto" is brutally abused by his parents and yet he longed for his parents? love. However, he didn?t want anyone to know about his secret until one day, his classmate - Fudou, an a heir to a wealthy company - found out about it. To keep him quiet, Shiraishi is willing to do anything to satisfy Fudou, yet Fudou forcefully asked Shiraishi to have sex with him.

Daichi's big sister is getting married, and to a super hot guy named Jun Igawa! When they first meet, Daichi's suspicious; what does this accomplished, rich, attractive guy see in his sister? But Jun seems like such a nice guy, and slowly, Daichi starts to drop his guard... is Jun really everything he seems? Or is he a devil in disguise?

Uke had a weak heart eversince he was born so he went to US for operation . He was bullied there but he meet a person who saved him and they became good friends.. now The seme is very popular & uke's friend has a crush on him....but there will always be some nasty bitches who tricked uke's friend into thinking that seme wants to be her partner in prom. ..she got humiliated & committed suicide. The friend left a letter to donate her heart to uke....as usual uke misunderstand that seme is at fault

Shin Sooyoung(19) , a sensitive & reserve child & also the breadwinner of his family ..Born into poverty he got the reality checked pretty soon all he wants is to grow up soon & support his family properly ..Sometimes he wonders what its feels to live freely ..He feels uncomfortable around his classmate & desk mate, Tae Jiwan whoms he hate & at the same time gets drawn towards him ..

Seo Jeongyun has a long time crush on the popular, Kang Chaeheon who was also his high school classmates & now they even attends the same university .. Kang Chaeheon is handsome & well like by other & he also treats others kindly except for Seo Jeongyun whom he treats coldly ..