so... they still meet each other sometimes, right?

did he die ??

No, he didn't die. He decided to take the blame for the perfume in order for Shell to rebuild society. And so humans could learn how to live for themselves. Therefore, once vampires disappear, they won't be clueless on how to be on their own.
He told Shell to shoot him in the chest right where he hid a metal plate. That way the bullet wouldn't hit him but for all the people watching him it'll look as if he actually died. Shell does go and visit him once in a while. I've read this manhwa at least three times now bc I love it so much.