One Piece: One Punch Man Summoning System.

Gu Changtian, who accidentally traveled to the world of One Piece, bound the One Punch Superman summoning system, established the first army in the world of One Piece, and continuously gained shock points.
Such a terrifying demon has traveled to the world of Pirates, where will the world of One Piece go...
Warring States "It's too scary, the First Legion is like a monster..."
White Beard "The giant is the most powerful man in the world..."
Redhead "It's broken, my face doesn't work anymore..."
Garp "I can't beat the First Legion with my iron fist..."
Huang Yuan: "No matter how much salary you give me, I won't fight the First Legion..."

Main characters: Gu Changtian,

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