Ash's Poipole/History/With Ash

In Showering the World with Love!, Ash and his classmates visited the Hokulani Observatory to witness showers falling from the sky and then floating back into space. When the first Minior fell, Poipole immediately became fascinated by the shining light they emitted. One Minior, however, hadn't managed to break out of its shell like the rest, so Ash and carried it to the observatory. At the observatory, Poipole kept examining the Minior, until next morning, its shell finally broke, revealing an. Poipole wanted to be friends with the Minior, but initially upset it by spraying some of its paint-like ooze on it. Poipole, however, understood that it had made Minior angry, and cheered it up by painting a picture of it on the wall. Over the course of the day, the two played a lot together, becoming good friends. The next night, another Minior shower came, reuniting Minior with its friends. However, as they started floating back up again, they began to fade away, as they couldn't survive too long without their shell. The same also happened to the Orange Core Minior that Poipole had become friends with, making Poipole sad, but it was calmed down by a gentle hug from Ash.

In The Shape of Love to Come!, Ash encountered Mina, an artist whose is capable of detecting the emotions of others. With Ribombee's help, Mina deciphered that Poipole expressed its emotions through its paintings and that it loves Ash and considered him and everyone who lives at Professor Kukui's house to be its family. During the following night, Poipole had a dream about a dark place filled with multiple sad Poipole and a tired Naganadel, causing it to wake up and go look at the moon while crying. The next day, Ash noticed that Poipole was sad and met with Mina again to help find out what Poipole was feeling. Mina accepted and discovered that Poipole was on a mission of some kind. Later that day, Ash noticed Poipole painting a picture of "The Blinding One", which it had taken notice of in a book Acerola read to them previously.

In The Prism Between Light and Darkness!, Poipole returned to its home world when the Ultra Guardians followed through an Ultra Wormhole. Poipole reunited with the other Poipole and Naganadel, who told the group about Poipole's motive for coming to Alola. Poipole later joined the rest of Alola in showering Necrozma with light so it could return to its. After the Ultra Guardians helped return the light to its homeland, Naganadel informed the Ultra Guardians that Poipole wanted to stay behind. Thus, Poipole left Ash and returned to its hive, but not before drawing Ash and Pikachu's faces on the ground to express its final goodbye to them.