Marimari (まりまり) is a member of Shinimonogurui and is the both the lead vocalist and guitarist.
Marimari is a white zashiki warashi with pale grey makeup surrounding her large, dark blue eyes and tiny grey nose. She has grey hair with straight cut bangs and a single red flower ornament, along with a white fluffy cat clamped onto her head. She wears a grey, black, and red floral kimono with brown shoes.
As Mari-Mari her skin tone becomes pink to her hair and wears a longer red and teal kimono.
In MariMariMari form, she wears a similar kimono with more red flower ornaments, a white fluffy collar, and tall dark brown boots. The cat on her head is much larger in this form.
As Extreme MariMari her hair gains a red tint and a single gold streak. Her attire remains the same.
Transformed into a human, she is shown in a different kimono, this one being blue and magenta stripes with bell ornaments and several different hair ornaments.
She imagines songs while her pet cat clings to her head. Sometimes fluid leaks from her head, but it doesn't worry her. When she can't think of lyrics she plays with a temari.
The members of Shinimonogurui are her childhood friends.
- Her design is based off of Marie Ueda.
- Marie insisted her pet cat be included as part of her character.