Ina, who is returning abroad from school, is taken to a smart house party by her reluctant aunt and meets the Marquis of Chale, who is hosting the party and who may be her aunt's lover!

At the request of her brother-in-law, Nana Lee took over as the dormitory mother in the student dormitory where the princes from each country gathered. Yuan, the deputy dormitory director, rushes into her who wants to be like everyone's mother.

Sui Shiomi came to Kyoto to make Japanese sweets at his favorite store. Filled with hope that his long-held dream will come true, he visits the confectionery shop "Shogetsu". However, he is informed that Sui is a possible bride for the heir to the shop, the Japanese sweets craftsman Shinomiya Kayoi! On top of that, the other heir to "Shogetsu", Yuzuki, the manager, also applies to be her husband!