My Stepmom's Daughter is My Ex

Now that they are stepsiblings, Yume tells Mizuto that she is clearly the older sister, making him her younger brother. But Mizuto firmly disagrees.

It's time for the yearly physical fitness tests at school, and Yume is determined to get good results. Meanwhile, Mizuto isn’t quite as motivated.

Yume tries to sneak into the bathroom in the middle of the night to get rid of a relic of her relationship with Mizuto, only to bump right into him.

At Kawanami's request, Mizuto takes Yume out on a date. Can they be a convincing enough couple to deter Minami from pursuing Mizuto?

To give their parents some time alone together, Yume and Mizuto arrange sleepovers with Minami and Kawanami — who live next door to each other.

Yume is determined to do well in her midterms so she can keep her status as the top student, but she has a formidable rival in her stepbrother.

Seeing that Isana clearly has a crush on Mizuto, Minami and Yume decide to help her catch his eye and move things to the next level.

Knowing that Isana has terrible fashion sense, Yume and Minami take her shopping for flattering, cute clothes she can wear when hanging out with Mizuto.

Back in middle school, Mizuto was Yume's first ever boyfriend, and things went well for the first few months. But soon, they began to grow apart.

With their parents stranded away from home due to a typhoon, Yume and Mizuto have to deal with a dreaded cockroach in the house on their own.