[Machine Translation] Ruiying is the princess of the Rat Tribe, who is said to be the weakest of the 13 tribes. She was summoned to the Dragon Tribe's territory to find a bride for the Dragon King, but she had another goal in mind: to sneak into the library, which boasts the largest storage capacity of the Beast Tribe, and gain knowledge. One day, seven days after entering the Dragon King's palace, Ruiying was enjoying reading alone in the library when she met a beautiful dragon man...? The dragon king was so impressed with Ruiying that he asked her what her life in the palace would be like...? A doting love fantasy between the weakest mouse princess whose only merit is her cleverness, and the strongest and most devoted dragon king!