Born as a guide, the rarest among the new humanity known as “posts,” Yoon Monan was an illegitimate son of the powerful Namkyung Yoon clan, a blessed mutant. Those were the words that described him.

Three years had passed since he fell from being a genius to a tragic figure after losing his twin hyungs in a battlefield accident. Returning with pink hair, menacing tattoos, and a mental illness, he was assigned as the team leader of the notorious Combat Division 2, Team 7, known for its failures.

From the rigid Mu Guwon, who cared only for religion and his flute, to the hot-tempered Kyung Haeguk and the crybaby Ahn Beom, Yoon Monan, a ruthless team leader who would stop at nothing to achieve his goals, constantly clashed with his team members.

“You need to be the legs of this team. When I say walk, you walk; when I say run, you run—the toughest bone.”