|Shinpi-tekina hana! Naze daremoga byōkidesu ka?|
|Season Heart Pretty Cure! episode 6|
"The Mysterious Flower! Why Is Everyone Sick?"
|Air date||February 28, 2019|
|Opening||Smile! Season Heart Pretty Cure!|
|Ending||Song of the Seasons|
|Directed by||Kobayashi Tsubomi|
|Written by||Kobayashi Tsubomi|
Main Article: Transcript
Hana has chosen to become the leader of the Season Heart Pretty Cure! team, and gave the quartet instructions so they could defeat Destroyer and the Hidoi. The next day, the girls are all talking about what may have killed them when they were the Four Princesses, but when they got to Hana's flower shop, they saw that everyone was falling sick! Everyone immediately blamed Hana because her parents ran the shop, and they were away on business. Akemi, Momoko and Ami want to save Hana, but they are running out of time! Can the girls convince everyone that Hana is innocent? Who is the real culprit behind this evil scheme?
- It is revealed that the owner of the Kaika Hana Shop's name is Koizumi Aika.
- It is also revealed that Hana has a little sister.
- Zero makes his first appearance.
- Koizumi Hana/Cure Tulip
- Chinen Akemi/Cure Flame
- Akikaze Momoko/Cure Maple
- Yukimura Ami/Cure Snowflake