Birthday: October 8
Height: 165 cm
Weight: 53 kg
Blood type: AB
Tsukasa is the classmate of Junichi and is also the class representative of Class 2-A. She is very hard working, and often takes the jobs that her classmates do not want. Her study habits, looks and personality are perfect. She is popular with the students, and is also seen as a reliable student by the faculty. Her hobbies include reading in a quiet place, as such she often appears to be in the library after school.
Her arc is the 6th arc to be shown in the Anime.
Her ending in the game:
Best End: Ayatsuji is accused of flirting with Tachibana while planning the Christmas school festival. She reveals her real, cynical personality. Everyone begins to hate her, confirming her cynical belief that people liked her just because she was a class rep. Tachibana becomes her sole pillar of emotional support. She quits being a class rep and forgets about her perfect image. On the night of the school Christmas festival, she and Tachibana sneak into the school and celebrate their own party there. They spend the entire night there. Sex is strongly implied. She becomes truly happy.
Good End: Her personality is never revealed and she never quits being a class rep. She plans out the party. She hugs Tachibana under the Christmas tree in front of everyone. There's a myth that whoever hugs under the true becomes happy forever. Many years later, Ayatsuji and Tachibana visit the school. Ayatsuji tells Tachibana she's afraid... she's been happy for so many years and hopes that happiness will never end. Their child runs up to them.
Normal End: They go to the same college and share the same room. She kicks him out of bed while making breakfast in typical tsundere style. She orders to him to always make her happy.
Bad End: She feels ultimately betrayed. Tachibana is the same to her as everyone else. The void in her heart is her proof and her vow that she will never trust anyone again, including Tachibana.
-- Ignored Epilogue is when you ignore her in the game.
Ignored Epilogue: Works as hard as ever on making the Christmas festival a success. There are some rumors that she might be hiding something. (which she is... her perfect image is important to her and something you break when you get to know her)