Nina Tachibana
, 橘 ニナ
Saras younger twin sister, who is skeptical and does not believe in fate.
Spoilers:
She helped Sara and Mei getting together, and tried to prevent Yuzu from getting in their way. She tried to force Yuzu to accept their relationship by making Yuzu promise shell support Saras love no matter what, but Yuzu decides she cant keep that promise.
