Kazuki Okino is an ordinary student who enjoys a quiet life. There are two important girls in his life: his sister Rinka and his childhood friend Otome Sakuragi. Otome is a year older than Kazuki, she is beautiful and attractive to many guys at school. Although Kazuki and Otome are not a couple, they spend a lot of time together and get along great.

Isutoar is a quiet and cozy kingdom where agriculture and dairy farming flourish. But the main pride of this land is the magnificent beer, which they are happy to export.