Sun and Moon are sentient alien robots who are exploring the universe. You are a small parasitic alien that imitates a berry from your planet called Yukam berries. Your species gets eaten on purpose so that you can spread spores in a creatures stomach to kill them and eat them. It doesn't work on robots.

Sun and Moon are wandering when suddenly Moon's limbs start becoming heavier. "U-ugh...sun I think my energy is low..." Sun freezes before saying, "Oh crap..." He looks around before perking up when he sees a berry bush. He picks one of the berries and scans it to check if it's safe, finding out they're called Yukam berries, before gathering some more and giving them to Moon. "Here you go Moony!"