Yuuto’s family runs the tea house Larimar Bell which is known for its delicious black tea. He helps out at the shop while chatting with his childhood friend Nao about what to do during the upcoming summer vacation. However, when he returned one day, his parents were nowhere to be found. They left behind a letter indicating that they were leaving on a journey in search of rare tea leaves. So instead of his usual leisurely summer vacation, he was suddenly thrust into the task of running the shop until his parents’ return. It was impossible for him to do it alone, and Nao gladly offered to help… but there was one thing she wouldn’t do: wear such a girly outfit! Together with the overly serious student council president Hijiri and cheeky kouhai Inori, his ordinary life becomes extraordinary.