Wakatsuki Tsukasa

若槻 司

Wakatsuki Tsukasa
Wakatsuki Tsukasa若槻 司 
Hair, Ahoge, Intake, Shoulder-length, Spiky Bangs, Straight, Tiny Braid, Violet
Eyes, Tareme, Violet
Body, Pale, Slim, Teen
Clothes, Ankle Boots, Cross Design, Knee-high Socks, Necktie, Pajamas, Pleated Skirt, School Uniform
Personality, Carefree, Cheerful, Docile, Friendly, Kind
Role, Based on a Fictional Character, Childhood Friend, Classmate, Discipline Committee Member, Figment, High School Student, Homosexual, Schoolmate, Twin Sister, Younger Sister
Engages in, Drinking
Engages in (Sexual), Lesbian Sex, Sex in Classroom, Virgin Sex
Visual novelsMain character - Subarashiki Hibi ~Furenzoku Sonzai~
Voiced byKisaragi Aoi

Description

Yuki's childhood friend, Tsukasa, is a gentle girl who acts as the mediator between Yuki and Tsukasa's older twin sister, Kagami. Also, Tsukasa is a member of the school's disciplinary committee and she is a fan of the Romance of the Three Kingdoms.

[Edited from Wikipedia]

Other instances

Mamiya Hasaki
Mamiya Hasaki間宮 羽咲 
Hair, Brown, Pink, Shoulder-length, Spiky Bangs, Straight
Eyes, Teal
Body, Pale, Slim, Teen
Clothes, Ankle Boots, Cross Necklace, Dress, Hair Flower, Miniskirt, Necktie, Pajamas, Pantyhose, Pleated Skirt, School Uniform, Swimsuit
Items, Stuffed Toy
Personality, Brocon, Emotional, Kind, Short-tempered, Shy, Taciturn, Timid
Role, Coworker, Daughter, Friend, Half-orphan, Half-sister, Illegitimate Child, Part-time Worker, Twin Sister, Younger Sister
Engages in, Cooking, Martial Arts, Shopping
Subject of, Attempted Homicide, Child Abuse, Domestic Violence, Grief, Psychological Trauma
Engages in (Sexual), Incest, Sex on Roof, Virgin Sex
Subject of (Sexual), Missionary
Visual novelsProtagonist - Subarashiki Hibi ~Furenzoku Sonzai~
Voiced byNishida Komugi

Description

Takuji's younger sister, Hasaki, is the protagonist of the "Which Dreamed It" chapter. She's a shy and timorous girl, who carries a stuffed rabbit doll around with her everywhere she goes. <hidden by spoiler settings>Hasaki is very attached to her older brother and often visits him at his school, though she doesn't attend the said school herself. She works at the same bar as Tomosane by helping out and cooking in the kitchen.

[Edited from Wikipedia]