Futaba Saki

She's tsundere with a strong tsun part, which is actually caused by her scaredy-cat personality. Still, she acts as the class president, tennis club president and inter-human relations are her specialty. She's often relied on. Gets especially well along with Kanade who's her classmate.

In the newly formed family, she's the mother's side daughter. Looked up to by her little step sister Yuiri, she's slightly put off by it. And yet, she cherishes her cute little sister a lot.