Kagami Touka♀

Touka is Kanata's older sister and the childhood friend of Aya, Kazane's childhood friend and cousin and is Rina's cousin. Although Kanata and her aren't bound by blood, she has always taken her role as an older sister very seriously, protecting and incubating him with love since the beginning. A model student, she is an example to all the students in the school and attracts the attention of all boys and girls, respecting and admiring her to the highest degree and making the school and hers family proud.

When she learned from her stepfather that Kanata was returning to town and that he was going to be transferred to her school, she offered to meet him at the station and introduce him to the other girls in the dormitory. Kanata is very surprised when he saw her because, although she has always been very pretty, Touka has grown up very well and is even more charming than before. Having been separated for a number of years, Kanata fears that it is difficult for them to speak as they did before, but in vain because Touka speaks to him as if they had never been separated.

However even though Kanata has grown up Touka is still as caring as ever with him, even though his needs have changed. No longer in need of protection, she then takes it upon herself to make him understand that she can satisfy his "love" needs...