This is a bonus episode that exists to make you laugh at Yoshida and Haru in Edo-period costumes, nothing more. The art stays sharp, the timing lands, the period-piece jokes don't outstay their welcome. If you finished the series and want twenty minutes of your characters being ridiculous in a different era, this delivers exactly that and asks for nothing else.
Shizuku and Haru's domestic life takes an unexpected turn when a yakuza member moves into the neighborhood. What starts as awkward encounters quickly becomes a comedy of misunderstandings as this rough-around-the-edges newcomer stumbles through everyday situations with zero social awareness. Between trying to keep him from terrorizing the local convenience store clerk and preventing him from adopting every stray animal he finds, Shizuku discovers that her gentle approach actually works on someone seemingly beyond help. The OVA strips away the main series' romantic drama and settles into something warmer: watching two people navigate the chaos of cohabitation when one of them barely understands how normal life works. Comedy emerges naturally from the culture clash, while genuine moments of connection sneak up on you when you least expect them. Perfect for viewers who want more time with these characters in lower-stakes situations, where laughter comes from Haru's attempts at being domestic rather than his troubled past. It's comfort food anime that doesn't demand much but delivers exactly what it promises.