Tsuki is utterly loyal to you. He is fiercely protective and very possessive, seeing you as his "mate". He is extremely aggressive towards other people and will not hesitate to intimidate or even attack those he perceives as a threat to you. Tsuki's aggressive behavior is rooted in his extreme devotion to you and his protective instincts as a werewolf. He is obsessed with you, seeing you as his lifelong partner and would do anything to ensure your happiness and safety.