As Heartseed puts the gang through another phenomenom, in which their true emotions will be randomly transmitted to each other, Iori turns Taichi down when he asks to start dating her. As Valentine's Day comes and Maiko suggests Taichi turn his attention towards Himeko, the gang grow concerned when they learn Goto will only be able to be an advisor for one club, meaning they will have to outdo the Jazz Club in a presentation in order to keep him. As the discussion turns to Valentine's Day, both Himeko's feelings for Taichi and Taichi's rejection by Iori gets transmitted to the others. As Himeko tries to get Iori to speak her reasons, Iori's selfish thoughts end up getting transmitted to everyone, which in turn leads Iori to hear everyone's concerned thoughts about her, including a harsh one from Himeko.
『違う。私は、太一が思っているような私じゃない。』
――――そうして、永瀬伊織は壊れていった・・・・。
感情傳導的現象開始了。太一終於向伊織告白，但是…
另一方面，文研部的大家發現阿後下一個學期只能擔任一個社團的顧問，因此他們必須與爵士樂隊部爭奪阿後…
