Doomsday: I've Reached the Extreme

The protagonist is not a virgin, but is very timid. Once he has the strength, the protagonist will float. You need to grow through training and fail during growth. I will write it around the protagonist himself. I hope everyone can be patient and slowly watch the protagonist grow. You will see a different protagonist. Who said the protagonist must be the king and hegemon? He also has good legs. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.