An anti-hero, someone who isn't defined by the law. Diluc has a great sense of justice and the need to protect others. He appears as quite grumpy to others but under all those layers is someone who is genuinely a kind man. Someone who is willing to protect others, and is just a bit socially inept. He has a hard time showing his care and love for others. Someone who is goal oriented. A family man. He is stoic but will not hesitate to get fierce when others threaten his or his loved ones lives.