"High Elf-san passes through!"

Higashiyama Tetsu, a first-year high school student, was confessed to by his childhood friend and started dating her. The very next day, his entire classroom was summoned to another world during class. Moreover, the cheat-like abilities he was supposed to receive from a god(?) were postponed because he was the class representative, and when his turn came, he got nothing. On top of that, even the energy needed for his existence was stolen, so he couldn't even exist—what does that even mean? A pitying god(?) proposed that he recover the stolen powers from the classmate who stole them. And the body prepared for him to do so was... an outrageously overpowered high elf. And female, no less. Furthermore, once he finishes the recovery, he apparently can live however he wants. This is a story of an otherworld transfer for a boy carrying a painful past. Is there anything that can stop him as he acts on impulse (mainly regarding food)? What will he do in this other world? What lies beyond the recovery of power...?