The Perfect Avenger

The protagonist, Ren Matsushima, was once a bullied outcast. Now, he is a CEO of a massive pharmaceutical company worth 5 trillion yen, having developed a globally distributed vaccine for a new virus. Strength, intelligence, wealth, fame, authority, and the perfect wife. Ren has obtained it all. However, those who once tormented him continue to live their lives as scum, unpunished. Determined to settle the past without compromising his own peace, he went on a mission of the Perfect Revenge, a retribution that is absolute and untouchable.