Zen martial arts academy manga

Zen Martial Arts Academy summary:

Zen is a type of inner power energy that is essential in the Marital Arts World and the amount of Zen everyone has is different. Mingyum is a person without Zen, who wishes to become East Asia Strongest Martial Artist. Due to an argument with his sister about which Major she wants him to take at school and what he wants, he left and wandered around only to end up in a bad neighborhood. He ended up saving a girl, but he got himself beaten up in the process because he possesses no Zen. Then he got saved by a foreign girl who suddenly appeared and announced that she was his fiancée. Now what will happen next?