六道 骸

Rokudou Mukuro is the Kokuyo Arc's primary villain. Portrayed as the series' first primary antagonist, Mukuro Rokudo is introduced as a 15-year-old (former) Mafia criminal and the leader of the Kokuyo Gang, which consists of heinous criminals who have recently escaped from an Italian prison. Despite often being shown with a playful smile, Mukuro is seemingly apathetic to the suffering of others. Appearing as the series' first antagonist, Mukuro is not averse to disposing of those who get in his way and is not easily intimidated, usually speaking to others in a very direct and arrogant manner. He cares little for others, and simply considers people to be "toys" or "tools" he can sacrifice in order to get what he wants. Though usually calm, he is easily angered in some occasions, mostly whenever his hair is compared to a pineapple, in which case he would immediately give the offender a punishment, both ruthlessly and comically. Mukuro, along with Ken and Chikusa, has a great hatred for the entire Mafia underground, most likely due in part to the experimentations they suffered as children. However, not only does he have the desire to destroy the entire Mafia, he also wants to invoke world suffering by starting a world war, claiming to want to cleanse the world with darkness because he sees the current world as worthless. However, later on in the series, he becomes Tsuna's Mist Guardian. He takes on a more supportive role for the series' main characters, becoming somewhat of an ally rather than an enemy, though he prefers to not consider himself as one of their allies and avoids any involvement with the Mafia due to his past. In spite of claiming that people are just toys, he is considerate towards his subordinates, particularly both Ken and Chikusa, and possibly Chrome, protecting them and even sacrificing himself when it's necessary. However, he does not directly do so in front of them and never admits it openly, hiding what he truly feels about them from everybody. [Taken from Reborn! Wiki.]