Regarding My Reincarnation as Umaru's Brother

Kasumigaoka Utaha: Saya, could you pull the curtains for me, it's uncomfortable to sleep. Touma Kazusa: It didn't matter before, we need to seize the present, right, Yoru-kun? Golden-haired loser: Hey, I don't want to call you senpai, it was clearly me who introduced you to this! Sawamura Spencer Eriri: Should I wash Mutsuki Yoru-senpai's hair, or his hands? Doma Umaru: Onii-chan is mine!… Himouto! Umaru-chan, Saekano: How to Raise a Boring Girlfriend, White Album 2,… and more to come… Mutsuki Yoru: I don't know anything, I must still be dreaming.