DUCAN Lucifer DUCAN, who tempts God. He hold the power over Aren – the city of water colors, and uses innocents souls for the source of his Black Magic. He got wounded severely during the fight with the priest SHA, so stayed in the outer wall of the city. During his stay, he met this beautiful and innocent girl and hot cured by her, but then he found out that she is the sister of Aren who saves souls with SHA from him and get very confused.
TENDER SHALL 18 years old The sister of Aeren, the city of water color. She has been retrieving poor lost souls from the contract with Lucifer and purify them. She can see future in her dream and SHA's been a great help, but the sadness of the people who didn't get saved is a burden to her as she is after all still a frail girl. She feels SHA's love, but she try to ignore and pretend there is not any feelings between them.
SHA 17 years old The priest of Aeren , the city of water color. He has been helping SHALL, the sister of Aeren with purify Lucifer's troops. He decided to sacrifice his life to God, but he has fallen hopelessly in love with SHALL with feelings he cannot define. Not like other priest, we is also a wizard.
Petsha The girl who loves cat and beautiful singing of birds. Not like Ducan whom made of pure dark blood, she is half human and half dark elf,and also Ducan's one and only precious younger sister. She is weak by nature because she is mixed blood, so Ducan's right hand, swards woman Ira has been teaching her a swordsmanship to protect herself. She asked her brother to get alchemy and mathematics lessons from Kiril, and she ended up falling in love with the intellective and dispassionate Kiril. But she realizes that Kiril wants to be just with Ivan all the time, and has her heart's broken. The most scary thing for Ducan who is the master of cold-blooded dark world, is losing Petsha.
KIRILL One of the Lucifer’s vassal. He manipulates and captures human souls and brings it to Lucifer. For that he gifted not to be old and stay young forever. He is good at mathematics and alchemy.
IVAN Same as KIRILL, IVAN is the one of very important vassals of Lucifer. He keeps and watches over souls, which KIRILL brings before LUCIFER needs it. He also doesn't get old and stay young forever. He can disguise himself into something else.