Infinite Card Draws in the Detective Conan World

[The story is set in the world of Detective Conan, though it only focuses on Detective Conan in the later stages. Earlier on, it crosses over with other worlds, such as Prince of Tennis, which is currently being written. It features multiple heroines. If there are any characters you'd like to see added to the harem, feel free to suggest them. The author will consider whether they're a good fit.]

The protagonist transmigrates to the world of Detective Conan and gains a golden finger that lets him draw endlessly. From then on, his life revolves around drawing cards.