My Sister Works in a Fantasy World to Support Me

My name is Qin Ming. I have an old sister who depends on me. She is 178cm tall, has long legs and fair skin. She is recognized as a goddess. When I was eighteen years old, the older sister I depended on disappeared and only sent me a text message. The text message said that she was bound by a system, and now she has to travel all over the world, leaving me to look after the house with peace of mind and be a salted fish waiting to die. After reading the letter, I suddenly stood up from the quilt, and then a gust of cold wind blew by, so I decided to continue lying down for a while! However, not long after, a cold voice suddenly sounded. "Dingdong, your sister successfully killed the monster in the fantasy world and will be rewarded with a Supreme Foundation-Building Pill!!" In the fantasy world, a tall and cold girl looked up to the sky and was furious: "System! Where is my reward?" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.