A Guide to Spoiling Your Frail, Sickly Darling

[Main character is the recipient of affection + adored by everyone + heartwarming + wealthy family] There is a romance, but the main character won't date until adulthood. System 001 never dreamed it would be bound to a little toddler under three, then brought into a mission world with him. Help! This is the last mission I need to complete before retirement. In an era flooded with melodramatic novels and endless stories about exes trying to win back their lovers, 001 had planned to choose someone in the mission world to help complete the task. But now, 001 looked at the snow-white little bundle in the incubator: ... And An'an, who'd somehow ended up in a new world: completely bewildered. Don't ask. We're just looking after a kid. As the youngest son of the Xin family, Xin Le'an has an eldest brother who's a domineering CEO with a pathological obsession with taking what he wants, a second brother who's a sharp-tongued villain in esports, and a third sister who's a vicious villainous director in the entertainment industry. 001: Kid, this family might be a little dangerous. An'an: “Everyone's so nice!” *waves* P.S. The author's writing isn't very polished, and the little one has poor health. He'll get mostly better later, but won't be completely cured. Because the plot calls for it, there may be some focus on the parents' romance and a secondary couple, but very little. A warm, everyday story. It won't focus on face-slapping and tormenting the villains, though there will be some.