Qin Lin accidentally enters an ABO world he's completely unfamiliar with.
An unreliable System tells him to win over his younger sister's crush.
The former top science student has to start all over and study the humanities if he wants to get home.
An unfamiliar way of studying, a body with a different anatomy, and now there's a rut, too?
Both leads are sexually exclusive.
A longtime crush finally becomes mutual.
Two Systems, two Hosts.
One-on-one romance.
Theme: Success in both career and love
