Jaa, Kimi no Kawari ni Korosou ka? ~Prequel~

The prequel to the series [Jaa, Kimi no Kawari ni Korosou ka?]. The main character this time is Kumaoka Aizen (Ameli's younger half-brother who appears in chapter 22 of the main story), the son of a yakuza boss. The story takes place during Aizen's middle school years and this section focuses on describing the personality changes of Aizen and the other half-siblings that Aizen has met.