I regressed and became the weakest summoned of a genius summoner. Now, I will protect her from the one who killed us.

I was reincarnated as a Japanese girl. ‘I-I’m Ka-Ka-Kayano Mi-Mina. M-My hobby is, um, listening to music and playing games….’ …And I’m an introverted loser with social anxiety. This is the story of an introverted loser with social anxiety who grows while becoming a VTuber.