Oiii Bestfriend she's right there why me?!

Haru Tachibana is the typical bestfriend of every obsses Male lead he helps him and encourage him to pursue the girl that he likes .

He is the strong foundation why the ml still at sane but...

what if he leaves him?
.
.
.
that's the starting point of the ml to become a crazy psychopath
.
he can't let him leave him now that he knew that he can't live without him...

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warning this is a very very cliche story im still not good at grammars and spelling so expect that their will be errors on the chapters. (im not really good at typing english or speaking but i can understand it when reading)

this is my first time writing a novel so please bare with my cliche self i just love male yandere so i think why not combined it with bl cause why not