Vain Afterimage summary:

[Nanachi] Theo, the head of the mafia organization, is in charge of completing a deal for a new drug, Nova'. However, what appeared at the trading venue was Eric Davis, CEO and researcher of the global pharmaceutical company Davis Company'. "Theo, did you think I would forget you?" Theo, who wanted to be forgotten from Eric's life because of a past incident, pretends not to know Eric, Eric says he will get revenge on Theo and harasses him freely under the pretext of a deal. Theo, feeling guilty about his past, obediently accepts Eric's ridiculous demands and opens his eyes to pleasure... "Please try to please me sometime.+