You're My Rainbow [Nijimura Shuzo X OC]

Diamond Spade. Crown Deck. Crisis Soul. All those codename turned her life upside down, 180 degrees. She was innocent, knows nothing about the violent side of the world. 4 years after her parents' death, that fearsome captain Nijimura Shuzo came pulling her to succumb to the dangerous side. He's the leader of the powe...