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Alien Headbutt

As a young man, Shirokiba left his small island seeking glory as a pro wrestler in Tokyo. After much sacrifice, he returns to his hometown as a champion, but he finds that it's overrun by mysterious aliens! Strike, throw, hold, cheat! He'll need to use everything he's learned from pro wrestling to take down these monsters! Blood, sweat, and aliens getting their butts kicked in this high-octane pro wrestling action series!

(Source: MANGA Plus)