Conan, but the winery

[The protagonist is pure black and does not wash white]
As the second-in-command of the winery, Shirakawa Kiyoshi's life is actually very leisurely. Every day, he lets Gin catch undercover agents, takes a walk with the FBI who always shouts to arrest him, occasionally plays detectives to play reasoning games, beware of Kudo Yusaku who has been investigating his "cause of death", and "takes care" of his old friend Mary's children...
This ordinary daily life continued until the day he found Miyano Shiho.
Sa~Shirley~It's time to go home and let's continue your parents' research!
ps: The protagonist is an old monster who has regained his youth and will disappear from time to time. Although the introduction is very playful, he is actually decisive in killing and is purely black and has no whitewashing. He has connections with many father-generation characters in the play. There is no golden finger, but there are original characters, and the story of the theater version will be interspersed.
ps2: In addition, in order to better arrange the character plot, this book is not completely based on Conan's main storyline time, there will be reasonable adjustments to varying degrees ∠(ᐛ」∠)＿