The boy and the girl are playing completely opposite strategies. The girl is more focused on her energy than her health and the boy is more focused on health than energy.
But both have their flaws and both have their advantages. Currently the boy managed to get slight advantage over her, by taking this mount position.
He was about to pummel her down, but at this moment, the vines that is holding her down was suddenly burned to crisp as her energy rapidly reduced to dust and a punch flew out as she tried to intercept the boy's fist with her own.
As if he is anticipating this, the boy suddenly changed the direction of the attack and made it land right beside the head of the girl on the ground. His energy consumption increased once again, but at least he landed his fist where he wanted it to land, but for the girl, the situation wasn't very good as the attack completely missed the target and she consumed a lot of energy.