Kurosaki Karin has always been able to see spirits, but chooses to ignore it in order to live as normal as possible. However, strange things are going on in Karakura Town, and when Hitsugaya Tōshirō shows up to investigate, the unthinkable happens. Karin unintentionally ends up with all of Hitsugaya's powers and finds herself dragged into the world of Shinigami and Hollows.

AU. What would happen if Aizen discovers the truth about Yumichika's Zanpakuto? Especially after getting allies from a forbidden source. Not only does he need to avoid the traitorous captain, but he also needs to utilize the power of his inner Hollow, who appears to be very different than others. And how are two fives connected?