Kasumi Midori

Kasumi Midori (霞 みどり) is the fourth Cure of 5 Heart Pretty Cure and Aoi's best friend.

Personality
Midori is someone who is caring, quiet, but can get easily jealous. She doesn't express her feelings on her face, which may make her seem in a bad mood sometimes. She is very caring towards her friends; especially Aoi, whom she treats like her sister. Midori is usually the odd one out, as stated by herself, but Megumi is actually the one that is the odd one out.

Meeting Megumi
Midori first befriended Megumi when Midori sat down at the same table as Megumi during lunch. They started talking, and eventually became friends.

Becoming Pretty Cure
When Megumi, Jenna and Yuka first told Midori about Pretty Cure, she didn't believe them, and said even if their "story" was real, she still wouldn't agree. This lead to Jenna and Yuka feeling hopeless, but Megumi insisted that she wanted Midori to be the fourth Cure, and approached her again the next day at school. Midori believed that Pretty Cure was real, after much convicing. But she still didn't agree to become a Cure. Megumi still insisted, until after school. While they were walking home, Megumi again pestered Midori, which made her annoyed and she scolded Megumi.

As they were standing around, Midori realizing she just hurt Megumi's feelings, a new villain appeared, not the one Megumi, Jenna and Yuka fought. The villain summoned a Nibui, the monster which the other three fought earlier on. Megumi, Jenna and Yuka transformed, and told Midori to hide at a safe place. Midori hid behind some plants, and watched them fight. She only really believe that Pretty Cure is real. After seeing that Megumi, Jenna and Yuka tried their best just to fight the Nibui, Midori decided to become a Cure. Her determination called out to the Heart Pact and Heart Jewel, which appeared in Midori's hands, allowing her to transform into Cure Mist. She assisted Cure Blessing, Glow and Light, and helped defeated the Nibui.

Midori apologized to Megumi, who accepted her apologies.

Etymology
Kasumi (霞) - Kasumi means "mist", referring to her alter ego, Cure Mist.

Midori (みどり) - Midori (緑) means "green", obviously referring to her theme color which is green.

Relationships
Korino Aoi - Aoi and Midori had been very close since they first talked, therefore Midori treated Aoi like a sister.

Aizora Megumi - Megumi strongly encouraged Midori to become a Cure, which totally changed her life.

Trivia

 * Midori is the first Cure in the group to have her name related to a color, the second is Aoi.