Loli Is Too Arrogant

An accident allowed her to obtain an immortal product; an accident caused her to eat something by mistake; an accident caused her to be hunted everywhere; an accident caused them to meet. She is a female high school student. She loves games and anime. She unexpectedly embarks on a different path. He was a demon, he was teased and laughed at, but an accident made him never abandon her. He is a demon, he is so strong and loves to be strong. He chases her for strength, but is accidentally saved by her, and he vows to protect her to the death from then on. The story begins by accident...