Name is pronounced Sa-yu-mi Ta-ka-ha-shi.
Sayumi is the twin sister of Kazari. She's not so good at expressing her emotions, and has a hard time connecting with others. She used to help Kazari with her concerts when she was a school idol. Sayumi laughs at others' mistakes but tries her best to not be a jerk. Sayumi gets along well with Yuine since Yuine doesn't care about Sayumi's blunt phrases and awkward emotions.