Itsuki Kawasumi

A high school student summoned to another world as the Bow Hero. He is usually calm and well-mannered. However, He has a messiah complex, and is pretty much a justice maniac. He vanquishes evildoers without thinking of the consequences of his actions. However, this is just because he is immature. He doesn't actually have any bad intentions.

When the Spirit Turtle revived, Itsuki and the party was forced to challenge it, but the party ran away, leaving him as a sacrifice to the Turtle.