Gin's Weary Career

"Gin, today I'm going to tell you the organization's biggest secret." "..." For example, that the organization is actually a training ground for undercover agents from various countries? "We're part of a vast dark force." "..." Boss, did you forget to take your medicine today? "I knew the experiment would succeed if it was you." "..." Why didn't you tell me that was the serum you'd been keeping for over half a century before you injected me? "You have to infiltrate the superheroes and get information about time reversal." "..." You've got to be kidding. My face is on the FBI's internal wanted list! "From now on, you're an undercover agent planted in our organization." "..." WTF! The loyal top killer is having another exhausting day with the Boss! This novel will be contracted on March 18. There will be three chapters on the day it goes live, so please support it! Coming soon: The Conscience of the Liquor Factory's Job-Hopping Journey, Gin x Akai Coming soon: The Daily Life of the Tenth Vongola Boss "The me with the greatest possibilities is about to arrive." 270, a Mafia boss who successfully saved the world. 270 smiles: My ideal is world peace (and spending the rest of my life with my teacher, whom I got back after losing him). A certain undercover agent: My stomach hurts... A certain eternally grade-school-aged boy: My head hurts... A certain newly appointed Port Mafia boss: My tooth hurts... Wait! Something seems off here! Reborn: My student has grown up and dares to scheme against his teacher. I'm so proud. [Draws gun] 270: Smiles without a word. The sky can only shine because the sun is there. Crossover: The eternally grade-school-aged God of Death, the leader who committed suicide by jumping off a building in the Wild Dog IF, and the King with the Sword of Damocles above his head Theme: May someone be with you at dusk, and may someone ask if your porridge is warm