Goddess Ristarte summons a hero who excels in every area to assist her.

He's everything she expected him to be except for one, tiny thing: this anxious hero can't do anything unless he's absolutely sure nothing can go wrong!

“I’ll take three suits of armor… one to wear, a spare, and another spare in case I lose the first spare.” Even with a slime as his opponent he uses the full extent of his power, annihilating them without a trace. With this overly cautious hero, and the Goddess he drags around with him, an epic adventure tale begins!

[Source: Crunchyroll]