"Kouichi Sakuraba is a prominent character in the Japanese manga series ""Evil Again"". He is a middle-aged man with short, slicked-back hair and piercing blue eyes. Kouichi is initially introduced as a successful businessman, owning his own company and widely respected in his field.

Despite his initial facade, Kouichi's true nature is revealed as the series progresses. He is revealed to be a manipulative and deceitful individual, willing to do whatever it takes to achieve his goals - even if it means sacrificing those closest to him. Kouichi is also a skilled fighter, with extensive training in martial arts.

Kouichi's past is shrouded in mystery, with only glimpses of his backstory revealed throughout the series. It is hinted that he has been involved in criminal activities in the past, and that he has connections to the underworld.

Throughout the series, Kouichi is often shown to be at odds with the protagonist - a detective attempting to bring him to justice. Despite this, Kouichi is also shown to have a complex relationship with the detective, with moments of begrudging respect and even admiration.

Overall, Kouichi Sakuraba is a complex and intriguing character in ""Evil Again"". He is a skilled fighter, a successful businessman, and a master manipulator - making him a formidable opponent for anyone who crosses his path."