Axel

Main Character from the City Hunters (2006) animated series.

Initially, a melancholic young man. He studied 3 years at the university - but in 3 different courses. Lived alone and went through various jobs to support himself. Once in a while he received an envelope with money, supposedly left by his grandmother. Since adolescence he's had just ONE girlfriend, Romina, who then replaced him with her personal trainer.
He was the chosen one by Doctor Lynch to learn the secrets of seduction.
In the end after intense teaching and experiences, Axel reaches a level of maturity in which he changes his initial main goal (of getting Romina back), and becomes a true master of seduction.