I'm A Zhen, Codename Gin

One day, vampire Gin woke up to find that he had transmigrated.

Yes, that Gin from Detective Conan!

Yes, the blood-sucking vampire (?)

Yes, he even brought some stuff with him (none of it useful).

He was close to breaking down. Why should a perfectly good shut-in like him have to get involved in all this fighting and killing?

Isn't being a shut-in great?

Might as well make the best of it? Not a chance.

Gin decided to give up on getting help. If he had to be an assassin, so be it. He knew the plot, so the world was his oyster!

Everyone: Is there something wrong with this Gin? Why did it take him telling us for us to realize?

Gin (smiling): Quietly taking credit for his achievements.

Theme: Show off and get struck by lightning