[Harry Potter + Durarara!!] HPPP!!

Shizuo unexpectedly becomes the savior of a poor, abused child. In this strange world, the only familiar person he can find is his old nemesis, Izaya. Shizuo stays behind in order to return to Ikebukuro, but faces one complication after another in this world. The black and white demon kings have joined the fray, and Izaya's motives remain unclear. How will this violent savior rescue the world? Subtitle: "The Violent Man and the Chuunibyou" "The Series That Lights a Candle for the World" "Izaya's Playing a Huge Game" "Parkour at Hogwarts v2.0" Content Warnings 1. Shizaya pairing. The timeline follows Volume 13 of DRRR!!, and the Headless Rider's story won't appear, so read without worry. 2. This is fan fiction, so out-of-character moments are inevitable. Those who prefer canon-compliant or BG stories needn't force themselves to read it. 3. One-on-one, with several side pairings, including BG, BL, and yuri. 4. Daily updates, daily updates~