Ragou Karasuma from Only You -Re Cross-, a game by Alicesoft
Now in Illustrious. No need for a separate tag to prompt his alternate look.
Description
Ragou (Older): karasumaonlyyou, red eyes, scar on face, purple hair, muscular, purple shirt, long sleeves, gloves, purple pants, belt, white shoes
Ragou (Younger): karasumaonlyyou, yonragou, red eyes, long hair, purple hair, grey hair, purple shirt, long sleeves, purple pants, white shoes