I don't remember is it chinese manhwa or korean manhua.

Mc has some power.

Fmc has a power too but need a tool to awaken them.

Fmc family is a martial arts. Has something like a dojo that train people.

Fmc sister became a bodyguard in the school.

There is yearly tournament between dojo family.

The one that represent fmc family lose to enemy dojo because the enemy dojo has 3 gold level i think. When fmc dojo just have 1 gold level.