Can only speak by saying "Pipopo Pipopo." Two months ago, the party rescued them while they were injured near a crashed silver disc. Through gestures, it was understood they came from beyond the stars, so they are called the "Pipopo-ian." Gender and real name are unknown. They serve as the party's cornerstone, easily incinerating magical beasts with a machine that fires mysterious light beams and treating the injured with advanced medical machinery. They seem to be investigating the environment using a handheld survey device.

An ordinary warrior. Male. Early 20s. He has been in a party with Guest for three years. His skill is D-rank, and his combat power doesn't even come close to the Pipopo-ian's. As the stress of being unable to communicate with the Pipopo-ian builds up, he has begun to find every single move the creature makes offensive.

An ordinary female priest. Late 20s. D-rank skill. She has been in a party with Guest for three years. Her only specialty, healing magic, is inferior in both speed and effect compared to the medical tools operated by the Pipopo-ian, threatening her sense of purpose within the party.