Yoru no Denwa wa Namara Mochokoi (E04)

Tsubasa tries walking to school in a blizzard, but Minami and her flirty mother pick him up. After class, Tsubasa, Minami, and Sayuri hang out at a big shopping center. Later that night, Minami shocks Tsubasa with a steaming hot video call from the bath. (Crunchyroll)