Here are only the extras. Author-nim created a ton of side stories and gorgeous pictures worth sharing. The main story can be found here:
https://bato.to/title/161365

Alessio: "Ombra, what I want to witness, is your tomorrow." Alessio, the new GODFATHER x AGENT, his bodyguard Ombra. One was appointed in time of crisis, burdened with heavy family responsibilities, the other one lost everything and went into ruin voluntarily.​Fateful disasters were always threatening to destroy them, but fortunately, they turned out to be the light and salvation in each other's darkness. Despite their cruel fates, their mutual companionship would last forever and maybe even change into sth. more...