Male Supporting System of Comprehensive Comics

The male protagonist was originally a young man who grew up under a red flag. After graduation, he had nothing to do, played games at home, and died suddenly after staying up late. He was reborn in the body of a Japanese young man named Hikawa Okasaka, who still had the golden finger of the supporting actor system in his mind. After that, he traveled through various two-dimensional planes, became stronger, picked up girls, and beat the male protagonist, and built a big crystal palace. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.