Callias is a prominent knight living in the country of Torititsu. While on the way to the old ruins with his childhood friend Fiana they discover...a very young girl! Thus, in order to shelter the girl who holds a strange power, Callias became a fake married couple with Fiana!?

The Pope, leader of knights, as well as the villagers, all ended up being involved; enjoying exploring the world together with his wife and daughter as a "family," the warm and slow life story starts here!

(Source: Novel Updates, edited)