Yukimura Seiichi awakened in his first year of middle school. From then on, all sorts of people who "shouldn't have been" in his world began appearing one after another.
Damn it! I just want to play tennis!
# Primarily a Prince of Tennis crossover, focused on playing tennis
# Everyone from the crossover series is just making a cameo
# Rikkai's three consecutive losses have no weaknesses!
# Magical-girl Child of God!
# The moment you step onto the throne, there can only be one Accelerator
Theme: The exceptional are destined to be exceptional.
