After traveling to the world of the Bone King, Rowan possesses a player profile and his first class is the rare Healer. Five years remain before the story begins. To survive, to avoid becoming a two-legged sheep, Rowan is forced to take on the Great Tomb. Optimization! Degradation! Ha, are you trying to push the limits of humanity?

Reborn in the Prince of Tennis world, you begin with the Three-Tama Sharingan. Three-Tama → Mangekyō Sharingan → Eternal Mangekyō Sharingan. On your first day at school, you challenge the Seigaku prodigy, "Your tennis balls are no match for these eyes!" Three-Tama is just the starting point; the path to the Mangekyō, and ultimately the Eternal Mangekyō, has begun! The title of tennis's strongest will be born from these all-seeing Sharingans...