A Friend

The Fire limb of the girl's Essence Soul moved to hit the prince that had just appeared, but at the last second an ice arm came out of the prince as well, stopping the fire arm.

The girl was too slow to stop the actual attack.

The prince swung with his fire axe, but at the last second stopped. Instead, another white arm flew out from his right, passing through the girl entirely, snuffing out any flames around her. 

A chilling cold surrounded the girl immediately and before she could even react, the ice swallowed her, completely freezing her over.

Then, the prince delivered the final kick that sealed the deal. The girl was sent flying far away, where she struck the wall of the barrier, losing the battle.

The prince looked at the axe in his hand and wondered if he should have used it. However, not using it felt like the correct answer here, given that he needed to keep the secret going for at least until the next round.