Badge in Azure - Chapter 4: The Apprentice meets the Soldier – Unexplainable (Part 1)

Leiyin accidentally crossed into the One Piece World, and accidentally obtained the Naruto System.

In a world where dungeons were an essential part of it, Rein was trying to conquer as many as possible. They were the key to gain powers in the fastest possible way. So, to reach his full potential and to become the strongest, he became a great dungeon conqueror.With his trusty friends and lovers, he was definitely going to reach the peak alongside everyone. Join Rein and see how he went from strong to stronger and then the strongest.__________________1. The harem would not be too large(I'm not sure how many but probably just 4-5 main and few other here and there). All the girls would be getting their time and story.2. The story is starting when the MC is in the middle of his growth stage and not at the very beginning. But his beginning will be mentioned in the story in some form.3. I don't think I need to mention this, but obviously it will not have any NTR, rape or that kind of stuff. It is actually quite a wholesome story focusing mainly on adventure, action and bit of romance and slice of life.

A good-for-nothing man married a beautiful girl but was kicked off the bed on the wedding night. Furiously, he wrote a bill of divorce and ran away.
He was schemed a car accident in which he nearly lost his life. However, it turned out to be a blessing. He swallowed the soul that passed through the outer world, thus obtained superb medical skills and martial arts.
Later on, with the silver needles and invincible martial arts, he embarked on the road of counterattacks and was committed to his great dreams.

- Description from Novelupdates

A car accident causes Yan Chuang to traverse into a martial arts world resembling ancient times, bringing along a 'Purple Mist Palace'.Teaching by Example (Level 1): Your explanations will increase listeners' comprehension efficiency by 50%, and their understanding and thoughts will feed back to you, granting you corresponding 'insights'.The Great Dao Cushions (Level 1): The Purple Mist Palace contains six Great Dao cushions that aid listeners in better understanding explanations and grasping the Great Dao. The effect of 'Teaching by Example' is increased by 1000%. Note: Only two of the six seats can be changed once.Treasure Nurturing Rock (Level 1): You can use 'spirituality' to enhance and nurture items.Method Development (Level 1): You can set up research tasks, gain inspiration, develop martial arts, and complete tasks to gain 'insights' and 'spirituality'. Currently, you can create 2 tasks.Upon reaching the other shore, Yan Chuang laughed and said, “I didn't specifically study martial arts, those were merely insights gained while preaching to disciples.”