Miki and Yuu fall in love because they're forced to live together, not despite it, and the show mines that collision for genuine chemistry instead of contrived obstacles. The first third moves like a real romance, messy, funny, tender, where two people discover each other in the margins of everyday life instead of waiting for a dramatic confession scene. By the time other people start wanting them, you've already felt what they have, so everything that tries to pull them apart actually costs something. The cast orbits them with real weight, each person wanting something true. It's a show that remembers romance isn't about obstacles, it's about two people becoming each other's home first, then figuring out what that means when the world notices.

Miki's world upends when her parents return from a trip to Hawaii and cheerfully announce they are divorcing. Worse, they plan to swap partners with another couple they met on vacation. At dinner with the other pair, Miki meets their handsome son, Yuu Matsuura. The two families move into a huge house together, and Miki finds herself struggling with the new arrangement and her growing feelings for Yuu, who comes to return them. Her best friend Meiko Akizuki helps her through the school year while keeping a scandalous relationship of her own hidden. Other suitors and secrets from both teens' pasts stand in their way, in a romantic comedy drama with a slice of life feel.