Comprehensive Manga: Obtain Saitama's Physique at the Beginning

After the protagonist was reincarnated, he thought he would be in a different world, but unexpectedly he was reincarnated in Sakura Country. I thought it would be a daily life, why is there a Heroes Association, and what does the CCG next door mean? Isn't this about playing with my rhythm? Don't panic if you don't, we also brought a plug-in. Kiss the golden retriever's cheek and gain Saitama's physique. No, no, it will take at least three years to start! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.