Haikyuu: Zero To Almighty - Chapter 539: What São Paulo Must Face—(Double-Length)

The world was once at war with 10 alternate worlds. This was known as the Concept War and our world won 60 years ago. All of this was concealed so no normal people are aware of this fact in the current time.

After the death of his grandfather, the high-school student Sayama Mikoto is suddenly summoned by the giant corporation IAI. He learns this world is headed for destruction due to the acceleration of the Minus Concepts. To prevent this, negotiations must be undertaken with the survivors of the other parallel worlds so their 10 concepts can be released.

And so Sayama is caught up in the final battle to clean up after the Concept War which left behind so much enmity.

Liu Yan, an ordinary office worker from Earth, unexpectedly traveled to a strange world.

The heroes of the ages are on the side, embarking on a journey to conquer the heavens.

- Description from novelbuddy

Kaka: Huang was the biggest contributor to the night in Istanbul, although he played less often.

Ancelotti: Huang is a super genius, but unfortunately he is not in good health.

Maldini: Huang is the most important player in the team. I suggest that the club renew his contract for another 5 years.

Barcelona: In order to sign Huang Kevin, we decided to sign his cousin with an annual salary of 1 million euros to show our sincerity. Milan’s veterinarian is not good, and he will not be injured when he comes to Barcelona.

Bayern Munich: We have a genius doctor!

Kevin Huang, the biggest jerk in football.

From fishing every day, he was forced to play every three to five games, and finally he was forced to become the savior of the team.

- Description from novelbuddy

This is a cliché story about two young people saving the world.