Mammon did fall with the brothers ;Mammon isn't related by blood to the demon brothers (we already knew);
Michael and Raphael are his biological brothers ;
Mammon love his brothers and his biological ones ;
Mammon do have favorites brothers and never want to tell who but his actions betray him ;
Mammon see Luke as a little brother/his son ;
Luke see him a big brother/father figure ;
Diavolo love and want to make Mammon his Queen but Mammon only see him as a friend ;
Simeon love Mammon and Mammon love him too ;
Mammon is actually very smart and is the first in a lot of classes but ask Diavolo to hide it ;
Mammon never let Greedy take control or have an impact on him (he is always unjustly accused) ;
Mammon can sing, cook, dance, cores, take care of people (especially with children) and can fight ;
Mammon is extremely skill and even more with a spear ;
Mammon can fight equally angst Michael ;
Mammon always pray the morning and end of the day ;
Mammon miss celestial realm ;
Mammon is « father » favorite ;
The exchange students angel/human love mammon presence, they are often around him or in his area ;
Mammon receive the choice to become an angel again and accept it (so he is an angel) ;
Mammon has only one regret.(that he followed Lucifer)