The reason Sera applied to join the hero party was partly due to her loyalty to Ariel, but more than anything, she had nowhere to go after graduation.
She had never properly considered her future. Of course, for someone with Sera's abilities, there were plenty of places she could go, but whether they were truly the paths she desired was questionable.
That’s why she wanted to follow Ariel. She believed that being by his side was where she belonged.
Clana's reason for joining the hero party was even simpler. She was a saintess. She would eventually have to stand on the battlefield.
While others feared the battlefield that the hero party represented, Clana had to go to an even harsher battlefield if she didn’t join.
In fact, it could be said that she had almost no choice.
And the reason Iria applied to the hero party was...