My Powers Were So Strong, I Was Rated F-Class

Pretending to be a pig and eating a tiger is so wise as to be foolish. The protagonist is a powder keg that explodes at the drop of a hat, doing things regardless of the consequences. The killing was not decisive, and the two villains in the early stage also jumped around repeatedly, but they were not killed secretly and were kept for the New Year. The villain is also very smart. The protagonist has a face-slapping physique. Any villain has to be slapped in the face n times, and then takes resources from the villain. Also, the strength of the superpower is a mystery. Only the level is shown here (F level, E level, etc.)