After graduation, I came home only to find that my mother had a bunch of sisters

George was stunned. He had been in university for seven years, but when he returned home, he found out that his parents had secretly given birth to a second child behind his back!

Moreover, he had four cute little sisters!

George, who had never taken care of a child before, was speechless.

Fortunately, the sister-doting demon good brother system was online!

Pick up your little sister. Reward: Perfect Physique.

Tell a story to coax your sister to sleep. Reward:

Buying a dress for his sister would give him double the reward…

Just as Su Heng was addicted to being a sis-doting demon and could not extricate himself, he realized that he had become famous. All the young ladies on the internet wanted to be the sister-in-law of the four little cuties. What should he do?

(The introduction is weak, please see the main text!)