[Asch hadn't heard the echo of another splash following him, so he glances over his shoulder to see what's going on just as she dives in. He kicks his legs to try to stay ahead, but before he can face forward again, he sees her hair start to glow.
And quite suddenly he has no breath in his lungs because he's too busy going "WHAT" underwater.]
[Action]
And quite suddenly he has no breath in his lungs because he's too busy going "WHAT" underwater.]