SOMEWHERE IN THE SIDELINES

Reincarnated as the side character or rather side kick in your favorite novel when you wished upon an old well behind your school yard, wasn't what you exactly wanted.

Now you're reincarnated as the villainess' friend who's only mentioned thrice in the novel. The complicated character who mysteriously died at the 20th chapter.

Refusing to live so short, you refused to die and along the way of trying to survive your cruel death, your character's abrupt personality change caught the eye of the main cast, along with someone who's as insane as them.