One Punch Man: I Am the Underground King

Reborn as the powerful underground king in Bald Saitama's dream, he has the terrifying ability to fuse genes. Saitama, let's fight with all our strength! Even if this fragile world turns to dust under your and my fists! Ps: It's hard to find pictures of the Underground King, so I'll use this one to make do with it. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.