I Told You to Go Undercover, Not to Care About the Boss's Wife!

[Undercover in the underworld + simmering tension + everyone playing their own game]

I was just an undercover pawn in Ikebukuro, but I stumbled into Tokyo's top underworld power struggle.

I thought my life was out of my hands, and that I could only leave my fate to chance. But, unexpectedly, the coldest and craziest big sister-in-law took me to heart.

Chizuru plots her moves, Ishida secretly strikes back, and Yano watches like a tiger waiting to pounce.

Human bonds, power games, dirty money, and murderous intent are all tangled together.

The deeper I venture into the darkness, the fewer people can escape. I only wanted to stay alive and keep my head down, but somehow I ended up becoming the biggest wildcard in the whole game.