Sakihata Rimi
Sena and Kozue broke into Takumi’s room, and found the paper with “Ir2″ scribbled on it, causing Sena to attack Takumi and Rimi.
Because of the fight, Rimi took a massive shock and lost consciousness.
Takumi took her in while she was out, and when she came to, she had regressive amnesia dating back to her childhood.
And Takumi became aware of Rimi’s past memories, hidden at the bottom of her heart…