MC transmigrated to a magical world where magic are done through cards, has cheat where his handgun and cellphone became his life-bound artifacts with great power. He also uses science + magic to advance.

谁家顶流摆成这样 (Whose Top Celebrity are so laid back) ？ ---- ***

MC transmigrated into a world as a Top celebrity whose only good quality is his handsomeness. But MC has system that grants him actual talents. He just want to earn enough money to retire, but end up making a lot more even though he tried to just do the minimum. This is in Chinese entertainment industry, so probably not relatable to westerners.谁家顶流摆成这样 (Whose Top Celebrity are so laid back) ？ ---- ***

MC transmigrated into a world as a Top celebrity whose only good quality is his handsomeness. But MC has system that grants him actual talents. He just want to earn enough money to retire, but end up making a lot more even though he tried to just do the minimum. This is in Chinese entertainment industry, so probably not relatable to westerners.谁家顶流摆成这样 (Whose Top Celebrity are so laid back) ？ ---- ***

MC transmigrated into a world as a Top celebrity whose only good quality is his handsomeness. But MC has system that grants him actual talents. He just want to earn enough money to retire, but end up making a lot more even though he tried to just do the minimum. This is in Chinese entertainment industry, so probably not relatable to westerners.

I guess I have to post the novels that's in this site here in the comments.

从解析太阳开始 (start from analyzing the sun) ----- Highly recommend ****

harem, unique power system, the cheat is an all-knowing eye. cunning MC, no simp.

我能超越空间 (I can transcend space dimension) --- ***

no harem, unique power system, the author's previous novel was better.

都赛博年代了，还在当传统反派？(It is the era of cyberpunk, still been a traditional villain ?)---- ***

harem, cyberpunk, cunning MC, Villain MC

MC transmigrated to a novel world where he is one of the small villains that was was loot delivery for the novel's MC. Knowing the plot, he fought the MC and got all of his girls and power.

法力无边高大仙 (Deity Gao of the Infinite Arcane power) --- ****

harem, ruthless MC, system

Same style as the author's previous novels, Super Handsome MC, very powerful MC, and keep getting stronger and kill to the top. good for mindless reading.

只想让玩家省钱的我却被氪成首富 (I just want to save money for the players, but they made me the most rich person) --- ***

no harem, reverse play, system.

MC has a system where the less players spent in a game, the more money he gets. Of course when he tried to not get player to spend money, they spent more.