30まで独りだったら一緒に暮らそうって言ったよね？

Synopsis

I thought it was just a drunken promise: “If we're both still single by 30, let's live together.” Just before her 30th birthday and in the dead of night, a suspicious figure appeared at Tsukiko's door—it was Sora, the one whom she'd made that promise with. Not exactly glamorous, but surprisingly fun—a thirty-something cohabitation adventure♪ ーFrom Takecomic.jp