After her parents leave to care for her ailing grandmother, high schooler Miko “Meeko” Sonoda moves into her uncle’s boarding house. There, she meets its rather unusual residents, including the oldest of the bunch: the grumpy mother hen, Matsunaga-san. With the help of her housemates, Meeko begins to adjust to her new life away from her parents, but she soon learns that no matter how far away from home she is, she’s still a young girl at heart—especially when she finds herself falling for Matsunaga-san …
If only she never had to say goodbye. High schooler Meeko continues to pine for Matsunaga-san, the scary-but-kind designer whose room is across from hers. Not only do they spend a day at Kitneyland with each other, they unexpectedly spend a night at a…special…place as well. Afterwards, while preparing for her school festival, Meeko learns that her homeroom teacher Kobayashi-sensei is the “Konatsu” of legend…and that she and Matsunaga-san used to be in a romantic relationship. As complications unfurl, a previously reluctant Matsunaga-san and Ryo-kun show up to Meeko’s school festival! And what could this urgent text from Hattori-san be about…?