A Centaur's Life S01 E03 Where Do the Little Ones Get So Much Vitality?/Regardless of the Generation, Magical Girls Are Popular, Huh?

Himeno goes out with her cousin Shino and comes across student council president Manami Mitama and her three triplet sisters, Chiho, Chinami, and Chigusa. Shino gets defensive about how the triplets go about kissing others, which isn't helped when Mitsuyo and Inukai provide their own input on the matter.