Yoo Joonghyuk, he's known as the Supreme King, is one of the strongest incarnations just based on a scenario in the first 100 chapters alone, has killed many, and has been through hell and back in his many other regressions, there's no way Haruomi Shingu is winning against him (I'm sorry Haruomi I love you too but you're just a guy who ((Used to)) composes songs and manages a Chinese restaurant)