Ranko DXD

Normally during his childhood, Issei Hyoudou would always play with Irina Shidou until she moved away. However that changed as one day, when the two of them befriend an amnesiac red hair girl that wonders into Kuoh Town. This simple act not only change the lives of the three of them but have cascading effect on the events that would happen in Kouh Town for years to come