[Hu Qi] Growth

Setting: An alternate timeline, before the Shibuya Incident and after the Junpei incident. Yuji Itadori and Kento Nanami go on a mission together. Yuji enters his secondary gender's heat, and Mahito tries to take advantage of the situation and kill him, but ends up being killed by Yuji instead.

Pairing: Itadori x Nanami, ABO setting, Alpha x Alpha.

Theme: I'll stay with you until the end.