The Tennis Immortal Emperor

Sun Song is a low-level corporate drone, exploited by his boss and betrayed by his girlfriend in the city. At the point of despair, he unexpectedly transmigrates into the world of Prince of Tennis and awakens a mysterious System called “Immortal Realm.” The System, however, interprets every special tennis technique in this world as an “immortal art” that can be cultivated and upgraded. Sun Song's predicament begins when he's parachuted into Hyotei Academy, Tokyo's elite private school. He must not only face rejection and skepticism from the tennis club, led by its “emperor,” Atobe Keigo, and his devoted followers, but also contend with the System's first impossible mission: **Defeat Atobe Keigo within seven days and seize the position of captain of Hyotei's tennis club.** Failure penalty: lose the System, be sent back to his old world, and continue his life of despair.

**Core Conflicts:**

1. **Overwhelming skill gap and an impossible mission**: Sun Song has the System, but his initial physical condition and tennis skills are practically nonexistent. His opponent, Atobe Keigo, is one of the best players in the Kanto region, with powerful techniques such as “Ice World” and the “Tannhauser Serve.” The vast difference in ability and the tight deadline create the first deadly pressure.

2. **A crackdown by the villains' proxies**: The antagonists, centered around Hyotei's former regulars and Atobe's loyal followers, see Sun Song as a troublemaker. They make things difficult for him at every turn during training and set traps, while isolating and smearing him in campus gossip, hoping to drive him away before the match.

3. **A dilemma and the System's ethics**: The System's missions often tread the line of morality, such as “Snatch a key character and weaken your opponent's fortune.”