Kill Me More Times, I'll Become Invincible - Chapter 252:

When the protagonist woke up, he discovered that he had become Song Qingshu, who had his meridians destroyed in a contest of martial arts and was banished from his sect. He also found out that this was a chaotic world that incorporated Jin Yong’s 14 novels. What will he do now?

Hunter Cha Eui-jae, who was dispatched to seal a rift that appeared over the West Sea, was flung out as soon as he closed the rift. When he came to his senses, he was lying in a garbage dump.Starving, he was drawn like a zombie is to blood to a hangover soup restaurant, where he realized that he had fallen into South Korea, eight years in the future.In this era, disaster alerts notify people of rift openings in advance, ASMR videos of slimes gathered from dungeons were trending, and idle hunters livestream unboxings of A-rank longswords.Unlike the past, where people trembled in fear of an impending apocalypse, the future was surprisingly peaceful, leaving Cha Eui-jae feeling empty. Since things had turned out this way, why not start a second chapter of life as a part-timer at the hangover soup restaurant, rather than being a hunter?“That’s strange.”“…”“Have we met somewhere before?”Cha Eui-jae’s plan to quietly spend his remaining days as the only part-time worker at the decades-old hangover soup restaurant goes awry when he encounters a mysterious, gas-masked individual…

A detective travels across the United States and becomes an agent of the Los Angeles Police Department.

After getting through the initial confusion, he repeatedly solved strange cases, became famous all over the world, and was called the most legendary detective in history…

- Description from novelbuddy

Protagonist travels between different anime worlds to right wrongs and uncover his reason for being along the way.