Kohinata Saki

"It's not every day you see such close sisters. You two look more like a pair of lovers."

The twins' childhood friend and a classmate of Futaba's, Saki is a talented cook who pampers her friends with all the love and warmth of a new bride. Her deep concern for her friends leads her to being overprotective, and she can be as fierce as a mother cat with her kittens when it comes to any perceived threat.

Saki is a member of the tennis club, and despite her docile appearance, she’s a gifted athlete.

Since they're in both the same club and the same class, Saki looks out for Futaba when Ichika isn’t around.