The Rebirth of a Martial Arts Master: Diary of a Gangster

After the modern eighth-level master Sakuraguchi successfully challenged the Hundred-Man Kumite, they were both killed by an explosion. Their souls traveled back to the Republic of China, and they even awakened the space system's ability to open portals. Just after time travel, he caused a train robbery that shocked the world. After that, he traveled to Sakura Country to kidnap the Emperor of Sakura Country and forced the Sakura government to cede territory and pay compensation. If you dare to study bacteriological weapons, I will open the door of the bacteriological weapons laboratory directly to the capital of your country. The world will now have many more rapid through doors