This is my master

Sawado's sisters Izumi and Mitsuki ran away from home to protect their pet crocodile. When they were desperate, they passed by a mansion and found a notice recruiting maids. The owner of this mansion is a 14-year-old boy, Nakabayashi Yoshiki. Because Yoshiki's parents died unexpectedly, Yoshiki had to inherit the wealth of the family and live alone in the mansion. Seeing that Yigui showed his talent, Izumi accepted the job of maid. But it didn't take long for Yigui to reveal his interest. It turns out that Yigui is a "lolicon, uniform maniac, candid camera maniac and GalGame maniac"! Izumi, who wanted to escape, broke a vase of Yoshiki's in a panic and owed a huge debt. Do the two sisters have to live with this pervert and serve him as maids? In fact, this is just the beginning.