|School||Hiiragi Academy's "Ichou" Branch Campus|
|Manga Debut||Chapter 69|
Tachibana is an Ichou branch campus student who had lost her way and was on the verge of attempting suicide.
A top grade student who lost her way due to the implementation of Junichirou’s “Routine Buster.” Unlike the rest of her schoolmates who went off to do their own thing, Tachibana stayed behind to continue studying for tests the normal way; unable to decide what to do for herself.
Feeling the pressure getting to her, Tachibana decides that the only answer is to commit suicide, but is met by Tokisaka Tomoya who asks to play a game with her to talk things out. He eventually states that it’s ok to not have something to want to do, and that having the future completely free makes it easier to reach a happy ending in life; finally calming her down.