This isn't a show that builds toward anything. It exists to watch Nobue's deadpan exhaustion clash with Chika's chaos in real time, to catch the exact moment a character's face shifts mid-sentence, to sit in a room where the only stakes are whether someone will actually finish their homework. Three episodes feels short because you don't want to leave. The comedy lands in the space between what these girls say and what they're actually thinking, and after the original series, you know them well enough to hear the difference.
Nobue, a chain-smoking college student, finds her quiet life constantly disrupted by her energetic younger sister Chika and their group of friends. What starts as simple cohabitation becomes a daily circus of small moments: lazy afternoons, failed attempts at self-improvement, spontaneous adventures through the neighborhood, and the kind of chaos only a group of girls can create while doing absolutely nothing in particular. The OVA continues where the TV series concluded, picking up the threads of these interconnected lives without pretension or grand stakes. There's no world to save here, no mysteries to solve. Instead, the humor arrives in the gaps between ordinary activities: the way Chika's sass derails Nobue's plans, how their friends amplify every minor situation into something ridiculous, the genuine affection hiding beneath constant teasing. If you're looking for something that treats everyday interactions as genuinely entertaining, where friendship moments matter more than plot, this delivers exactly that. It's comfort food anime that understands warmth doesn't require anything beyond good company and the absurdity of normal life.