When I Was Reincarnated in Another World I Was a Heroine and He Was a Hero Volume 1
Tensei Shitara Ore ga Heroine de Aitsu ga Yuusha datta, 転生したらオレがヒロインであいつが勇者だった
An ordinary student is reincarnated as the heroine – while his friend becomes the hero - in this comedic, identity-twisting isekai adventure! High schooler Azumi Keito’s life takes a surreal turn when a stray truck accident doesn’t end things — instead, he wakes in another world… as its heroine. Even more baffling? His longtime friend Taiga has been reborn as the world’s hero.