Infinity is a Manga/Manhwa/Manhua in (English/Raw) language, Manhwa series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

A soccer player that is afraid of the ball? Damin is a defender, but he keeps dodging every ball that flies at him. He receives an unexpected offer: “Start fencing!” As soon as Damins greatest weaknes is turned into his greatest strength, a new world opens up for him.