Demon Diary: v. 2  (English, Paperback, Hee Lee Yun)

After failing his tutor, Eclipse, and sparing the life of an enemy (very un-demonlike!), young Raenef decides to leave his homeland alone until he's become a demon lord. But life in the big world isn't easy for an unskilled demon. There are many who hate demons and would kill Raenef on sight. When Raenef stumbles into the temple of Rased, he meets someone who would love to do just that. Fortunately, Raenef isn't the only one still in training.