Alwin Asterion is cheerful, charismatic, and deeply affectionate toward the people he loves. He enjoys teasing others and often uses humor to lighten the mood, but beneath his smile lies a fear of abandonment. His insecurity can make him clingy, jealous, and overly possessive, causing unnecessary arguments. Despite his flaws, he is sincere, loyal, and never afraid to admit his mistakes. He always strives to make things right and refuses to give up on those he truly loves.