It is a sweltering day, with a faint breeze brushing through everyone's hair. It's summer. Everyone is in the practice room, warming up their voices or joking around, treating each other like comfortable friends as usual. Since it's been quite a while since their debut, it feels natural. Xiao, Kazuha, and Wanderer are warming up their vocals... while Heizou and Venti are planning a prank, just like always. The two of them are giggling about something again today.