Disappointing Love Affair (Yandere! Ex! Male/OC X Reader)

Hiro Yamanaki, was a first year student at Hokkaido Asahikawa High School, the 'heart throb' of the high school because of his bad boy exterior. Unfortunately for his fangirls he had a girlfriend who was his childhood friend, (Y/n) (L/n).

(Y/n) (L/n) was also a first year in the same school, and everyone knew her as the shy nerdy girl who dated the 'bad boy'.

A year later and it was the end of second year, and Hiro had been avoiding (Y/n) which had gotten the young girl slightly curious, however (Y/n) doesn't think much of the couples distance until a rumor of Hiro 'cheating' circles around the school which has the girl on edge.

After figuring out the truth about what Hiro had been doing, (Y/n) breaks off the relationship and enjoys the single life.

(Y/n) had found that she had depended on Hiro too much since they met, but now that he's out of her life her whole personality changed; it brightened.

Meanwhile, Hiro found that his world has turned upside down.

During summer break Hiro finds himself constantly thinking about (Y/n); despite the many girls who tried and failed to replace her. Hiro realizes how much he depended on her and how he couldn't stand her not being by his side. The attention she gave him was what he thrived off of.

Third year started and (Y/n) has completely gotten over the break up; she's more happy than ever. However when Hiro sees her again happily living without him he grows angry and wishes to get her back no matter the cost.

[Warning: May contain sexual content, inappropriate jokes, bad language, and other forms of abuse. (It's a yandere so of course it'll have that stuff!)

Viewers discretion is advised]