شخصية
الجنس غير معروف · العمر غير معروف
Koyomi is Jun'ichi's homeroom teacher, one of the faculty's science teachers, and Kotori's older sister. She is also a researcher at the Amakase Laboratory, and in charge of the Miharu android. In the Second Season, she is a new mother, and her strict composure rapidly crumbles when she talks about her baby.
D.C.~Da Capo~
D.C.S.S. ~Da Capo Second Season~
D.C.if: Da Capo if
