Hitokui Magical: Satsuriku Kijutsu no Niounomiya Kyoudai

A group is invited to observe unusual research involving Kuchiha Madoka, a girl who appears to be immortal. Ii, a user of nonsense abilities, joins Ichihime Yukariki and Kasuga Kasugai to investigate at a clinic in northern Kyoto. There, they encounter the Niounomiya siblings, known as the top killers globally. The story introduces these siblings as they become involved in this strange situation.

Traduzione in corso — testo originale in inglese.