Mizuto Irido and Yume Ayai dated in middle school and broke up when they graduated; they meet again after their parents get married to before they started high school.
EPISODE 1
The Former Couple Refuses to Say...
Mizuto and Yume used to date; now they've suddenly become stepsiblings.
EPISODE 2
My Ex Needs Taking Care Of
Yume was making an effort to change her personality and looks in an attempt to reinvent herself as a model student.
EPISODE 3
My Ex Has a Confession to Make
Yume has somehow found herself with Mizuto's boxers in her possession.
EPISODE 4
That's Not What You're Supposed to Say
Mizuto demands Yume go on a date with him.
EPISODE 5
The Former Couple Spends the Night
Yume and Mizuto go out to buy a gift together for Mother's Day.
EPISODE 6
The Former Couple Goes Head-to-Head
The first midterms of the school year are upon them.
Ai Kayano
Hiro Shimono
Nobuhiko Okamoto
Rina Hidaka
Miyu Tomita
Kazuyuki Okitsu
Shinsuke Yanagi
Hiroshi Kawamura
Yurugi So