Well. Kaseri can tell prettttty quickly that this is a serious situation. She looks from Tidus, then to Katsuya, and with an astoundingly serious expression given that she's a tiny tiny pastel pony, gives a short whinny before trotting forward. To the average person, it looks very much like she intends to just...walk into the chaos. Which for most, would go poorly.

Kaseri however, gives off an aura of calming- which should at least quiet anything in her vicinity down.

...

Katsuya is still waiting to see how well it works before he follows though, watching carefully.