In this adventure game for adults, the player will transform into a programmer with a relatively peaceful life. However, things start to get complicated when he receives an unexpected request from his sister. Specifically, after a tense argument related to refusing to go to college, her daughter (the main character’s niece) ran away from home. Babysitter forces the player to fall into a completely new story, where the player will have to play the role of a nanny for their little niece. So many stories have happened during this process. Because this girl is in her rebellious age, she will start to have extremely strange actions. As an elder, you must find a way to educate and guide this girl back to the right mindset. However, in the process of interacting with each other, the two of them have also formed an inseparable bond.