Nodoka decides to let Asumi stay with her so that she can be close to Rate, managing to convince her parents Asumi is Rate's owner who has traveled to Japan from abroad. Nodoka helps Asumi to understand Earth customs as she has only been alive for one day and finds everything new and strange. The next day Nodoka injures herself protecting Asumi; when Asumi asks her why she goes to so much trouble to help out, Nodoka tells her that her experiences from being ill changed her and she wanted to repay the kindness she was given. Meanwhile, Daruizen creates a MegaByogen from a Flower spirit, and Guaiwaru reveals it can be powered up using the crystals he took from Batetemoda's possession which they call Mega Parts. Daruizen then discovers they can harvest more parts from the powered up MegaByogen. The girls arrive and transform to defeat the MegaByogen, with Cure Earth protecting Cure Grace from Daruizen. After Cure Earth purifies the MegaByogen, Asumi tells Nodoka that she hopes her own experiences change her in the same way Nodoka's did.

Hinata buys lots of different clothes for Asumi and has her try them on in front of Nodoka and Chiyu. All three girls comment on how cute Asumi looks but Asumi asked what cute is, as it's another emotion she has yet to experience. Hinata attempts to explain it before she is called away to look after a new foster puppy at her family clinic. Hinata explains that the puppy is named Pochi-to who is very timid. In an attempt to get the puppy to open up, Hinata planned to take him to a dog park. Everyone accompanies her and Pochi-to to the park, where Hinata explains to Asumi of the difficulties of getting Pochi-to to trust her from the beginning. Asumi also witnesses how the other owners interact with their dogs and tries and fails to befriend Pochi-to. Suddenly, Guaiwaru appears and creates a MegaByogen from a Fruit Spirit and powers it up to gather more Mega Parts. The girls transform, however all but Cure Earth are overpowered by the MegaByogen. Pochi-to tries to defend Cure Sparkle, but luckily Cure Earth saves him before he is killed by the monster; she then purifies it. Afterwards Asumi reveals she has come to understand her new feelings after experiencing the dogs and their owners at the park, before finally making friends with Pochi-to.