All My Classmates Transmigrated

One day, Yang Yu suddenly discovered that many of his classmates had transmigrated to different worlds. Some had transmigrated to the end of the Ming dynasty, others to the Tang dynasty or the Qin dynasty. Some had even ended up in worlds from novels about Beijing courtyards, martial arts, or immortality cultivation. Yang Yu could contact them through WeChat. They could chat, send videos, and even give each other items by sending red packets. And just like that, Yang Yu got rich.