Kenji Asada commands Team Warrior, a specialized police unit, while maintaining a romantic relationship with fellow officer Maki. Professionally, he coordinates police operations, including calling in SWAT reinforcements during the siege of Samuel McCoy's mansion. Kenji prioritizes risk assessment, evidenced by forbidding Maki from investigating the dangerous Sartrait 7 club.

He actively participates in critical missions, infiltrating McCoy's compound through a skylight alongside partner Banba. This direct action results in neutralizing henchman Ryuji and arresting McCoy. Kenji's dedication extends beyond duty, personally rescuing the injured Maki and Reimi during the operation.

His background includes collaborative police work with Banba, gathering evidence against McCoy's sex trafficking ring. Their partnership involves interrogating suspects and pursuing leads. Kenji's personal life surfaces during an interrupted date with Maki, where Banba delivers case updates, illustrating Kenji's balance of professional responsibilities and personal commitments.

Kenji's development culminates in his leadership during the resolution of the white slavery case, concluding with McCoy's arrest and the rescue of abducted victims.