Sairenji Akiho

Haruna's older sister, she shares her apartment with Haruna.

Appearance
Akiho is slightly tall who has purple hair and eyes.

Personality
Extremely popular with the guys (having received confessions from two men at the same time), Akiho continuously turns them down, as her sister states she is not looking for love at the moment. However, she has been dating Yuu Kotegawa though she isn't taking the relationship seriously. She is noted to be very mature.

Haruna Sairenji
Her little sister who she  occasionally would  enjoys teasing over certain things  like having friends over, which Haruna greatly dislikes, although they do get along closely. She suspects that Haruna and Rito have romantic feelings for each other, and is "gleefully" supportive of them.

Yuu Kotegawa
Yuu  is someone  Akiho  is currently dating but she isn't taking it as seriously he does, like how sometimes he would ask her out she would decline, which he is disapointed by.

Maron
Maron is basicly her pet dog but since she is often at work, her sister Haruna is always the one taking care of him.