This model was created by I_Tempest over at Civitai, please drop them a like <3

Full character description (recommended): AinSR, grey hair, short hair, hair between eyes, ahoge, multicolored hair, blue hair, green eyes, blue scarf, black coat, cape, long sleeves, black gloves, jewelry, black pants, black footwear, 1boy, male focus

His hair color seems to be a lot lighter than it's supposed to in this class, so I would go for dark grey hair and see if that works.