Rin is a genius girl and otaku who have bad time making friends.On the way back home one day she met truck-kun and wish to have atleast see the last version of "Rebirth Of The Hero".
Hanazawa Hanako was a young otaku girl, technically a hikikomori, a degenerate, and a netizen. She died though. (LOL)
So naturally she got yeeted to a fantasy world to save it from the demon king.
When asked what buff she wanted: