Midori Gurin is the second student to be introduced as an Easter Egg.
Midori wears the default school uniform, unless customized. Having pale skin, she also has green eyes and hair that matches her eyes in color. Her hair is similar to Yandere-chan's, except longer with no ponytail. Her hair used to be in parted bangs, however, Yandere Dev thought she looked ugly. Yandere Dev claims to want her hairstyle a specific way, but there are simply no volunteers for this matter. Her bust size is 1, and she has regular white stockings.
Due to a running gag in some of Yandere Dev's videos, Midori Gurin is portrayed as an annoying girl who constantly asks her classmates and teachers questions that are considered foolish and stupid. Yandere Dev sees her as very, very stupid.
She currently has the Social Butterfly persona, if a camera is pointed at her, she will smile and strike a cute pose. If she witnesses murder, Midori will call the police where she is standing.
Midori's routine is currently unfinished, she stands in the exact same spot on the rooftop everyday.
- She is the third student with green hair, after Koharu Hinata andHayato Haruki.
- She is also the fourth student with green eyes, after Pippi Osu.
- She was the first student to not have white panties, her's were green.
- Her appearance was partly inspired by Tsuruya from The Melancholy of Haruhi Suzumiya.
- Her name, Midori, means 'green' in Japanese, possibly referencing her green color scheme, and her last name "Gurin" also means green. Essentially her name fully translated is "Green Green".
- Her routine is unfinished. She stands in the same spot on the rooftop all day, similar to how Rival-chanstands under the cherry tree all day, but the player can still interact with her.
- On the November 15th build, her hair was changed. It was changed again in January 1st.
- Midori's favorite food is anything green, such as green M&Ms.