Other Name: Kateikyoushi Hitman Reborn! dj - Aru Hi no Ookami no Hiroimono
Author: NAKAJOU Akira
Year of release: 2016
From The Unholy Trinity Mafia:The first story of the "Apple of Eden" Series. This is a super cute story about how the wolf Hibari and the rabbit Tsuna will start their lives together. So of course, the pairing is 1827.