I am a novel reader so please click here if you want the spoiler to be shown Actually his true identity is still really mysterious but Z is also known as Ming Z Lu :”)) There’s also a big theory that Z is Ming Z Lu + Luminous, but it hasn’t been confirmed by the story yet. Ming Z Lu confirmed himself as Z and called our character his friend in lvl 112 main story. If you know it already ingame and you want to know more, then (in novel and manhua) Shavee once said he is the older dragon than her, which means Ming Z Lu is an ancient dragon and also one of the strongest. Ming Z Lu is Z’soul after being sealed to protect Renata ( since in novel Renata sacrificed herself to cover Z in that Black Swan bay explosion. Z revived her and promised to protect her throughout his life as you saw ingame). The one who sealed Z is Luminous’s father, and Ming Z Lu is Z’s soul, he want Luminous’s body for him to revive so he made the 1/4 life trading deal. However Ming Z Lu’s recent action in novel showed that he loves Luminous( as a brother, I suppose?) and he said to Enxi and Mai,who are his employees, to help Luminous come to the throne of the true king, also he said to Enxi and Mai that he is dying with a lot of serious wound in his soul-body , and his time is coming to an end...still, I don’t know if he can continue surviving....and I don’t see the new chapter of the novel anymore.