"Koji is a main character in the Japanese manga ""Jealousy Inducers"". He is a tall and handsome young man with slick black hair and piercing blue eyes. Koji's handsome appearance often earns him a lot of female attention, and he knows how to use it to his advantage. He is an expert in making girls fall for him and breaking their hearts.

Koji is a manipulative and selfish person who enjoys playing with people's emotions. He is a seasoned player who uses his charm and wit to make girls believe that he is truly in love with them. However, once he gets what he wants, he quickly moves on to the next girl, leaving his previous victims heartbroken and shattered.

Despite his womanizing ways, Koji has a vulnerable side that few people get to see. He has a troubled past and a deep-seated fear of rejection, which stems from his difficult relationship with his mother. Koji's mother was emotionally distant, and he never felt truly loved as a child. This has left him with deep-seated abandonment issues that he tries to cover up with his womanizing persona.

Koji's character is also defined by his close relationship with his best friend, Hiro. Hiro is Koji's right-hand man and helps him with all his schemes. Koji and Hiro have been friends since childhood, and their bond is unbreakable. However, their friendship is often tested as Koji's manipulations start to take a toll on their relationship.

In conclusion, Koji is a complex character in ""Jealousy Inducers"". He is a charismatic player who knows how to get what he wants, but his troubled past and fear of rejection reveal a more vulnerable side to his personality. Koji's relationship with his best friend, Hiro, is also an important aspect of his character, as it provides insight into his motivations and inner workings."