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Identity: It's a fanmade MSA anime and manhwa.
Background: In Tokyo, Japan, these adoptive three siblings that are two sisters named Megumi and Ayami and one younger brother named Kaito always had to wear helmets because their adoptive mother named Kazuko would get super aggressive and super afraid of them, but although she keeps doing it, they still continues loving her because they understood that she was heartbroken after her fiance married another woman named Sumiko her age whom he deemed his favorite, she remained aggressive and afraid them and even blamed the woman Sumiko her ex-fiance married, yet they treated her gently, they created a cozy room full of maids and butlers for her to do manicure on her fingernails and pedicure on her toes and even giving her the right medication, when she understood that her new family meant no harm, she allowed them to do so. What happens next?