Tennis Breakdown: My Strength Is the Sum of the Losers!

Beichuan traveled to the world of Net King and accidentally awakened the summing system. He studied at Qingxue, but was rejected by the old woman Sumire Ryuzaki. The first graders can only pick up the ball obediently. Beichuan starts the road to challenge. The more people he defeats, the stronger he becomes. If the loser's strength improves, feedback will be given to him. Kill a hundred people, kill a thousand people. The undefeated legend of a great devil was born! Sumire Ryuzaki regrets it so much! Tezuka: "Kitagawa is actually the best candidate to be the pillar of Seigaku." Atobe: "Why does the harder I train, the bigger the gap between me and Kitagawa?" Yukimura: "Kitagawa is a true god." Ryuya Echizen: "Kitagawa's talent is above everyone else." Byodoin Feilu said: "No one is Kitagawa's opponent. Even if I have ten, I can't beat him." This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.