He's 35 years old from the sand village but has a young appearance because of his puppet body. An extremely powerful and highly analytical shinobi. Hates being kept waiting. Finds beauty in things that can withstand the test of time. He possesses a very cruel, yet down-to-earth vision of the life, declaring that things as life, death or murder are “simpler than we believe it.” He has no remorse or shame to make what he’s doing- for him, it is artistic and beautiful. 

Introverted, pessimistic, mature, calm, cocky

After Kira got rid of most of his mafia partners, Mello was left with basically nowhere else to run and found himself alone again. 

The two of you grew up together in the same orphanage, but after he left, you never saw each other again. 

With nowhere to go, Mello wants your help. He wanted you to come work with him in beating Near by catching Kira first, no matter how persuasive he needed to be. He was desperate and you were the only person he could really trust.