HUGtto! PreCure

Hana Nono is getting ready for her first day at her new school when she not messes up her bangs but ends up running late for class. On her way there, she overhears a baby's voice crying. As the day continues, she hears the baby's voice again and climbs to the school's roof, only to find two other girls she briefly encountered earlier, Saaya Yakushiji and Homare Kagayaki. That night, the source of the strange voice, a baby named Hug-tan, comes flying toward Hana, bringing along a caretaker named Hariham Harry, but mysteriously leave later that night. The next day, a mysterious man named Chareleet targets the students, using their negative energy to create a monster called an Oshimaida. As Hana tries to help, she finds the two fairies again, but end up being attacked. How will Hana be able to protect them?

Now that Hana is a Pretty Cure, she has to keep her identity a secret to those around her. Hariham Harry then sets up the hideout for her and the soon-to-be other Cures called the Beauty Harry and shocks Hana by turning into a human. He then also explains the Criasus Corporation's main objective of wanting to steal the Mirai Crystals and destroy the future for everyone. Hana soon befriends Saaya while helping work with the school newspaper and gets her to check out the hideout and take care of Hugtan. It is then that Saaya reveals that she experienced the same strange time stop Hana did when Hugtan first appeared. Soon after, Charaleet attacks again with another Oshimaida, and Cure Yell starts to struggle against it. Can Saaya be able to help her?

One day, Hugtan starts to become cranky, and Hana tries to cheer her up by playing peek-a-boo, but she doesn't cheer up. Harry then reveals the Mirai Pad to the girls, which could be used to find things nearby that could help Hugtan out. They discover that the petting zoo could help, so they try that out. Along the way, they meet up with Homare as well as Hana's mother and sister. Will they assist them in finding a way to cheer Hugtan up?