Kill the Celestial Dragons and I Will Defect to the Navy Directly

[Decisive killing + explosive killing of Tenryujin Momonosuke + empress palace + invincibility + multiple female protagonists] Su Chen traveled through the world of One Piece and became a naval instructor. The ferocious Neptune type, the cruel pirates, and the inhumane Celestial Dragons. In order to survive in this dangerous world, Su Chen used the awakened mentor system to improve his strength. "Completed the tutorial for the first time, received an A rating, and gained proficiency in the Sixth Form of the Navy." "Ding, I successfully made Zefa understand what justice is and get powerful fruits!" "Successfully made the Empress understand what the charm of a woman is, and gained the Empress' full level of loyalty!" "Successfully made Qing Pheasant understand the goal of life and obtained the supreme sharp knife!" ... After defecting, Su Chen started from the country of daughters and had peaches and plums all over the world. Many years later, Su Chen was very happy to see the students practicing seriously. The stronger the student is, the stronger he is! Zefa said: I examine myself three times every day, and it turns out that Su Chen is the best teacher! When the Yonko and the Three Great Generals meet again: What? Are you Su Chen's student? Coincidentally, so am I! When Im realized that Su Chen was going to be in serious trouble, she discovered that her Knights of God had also turned against them! I, Su Chen, conquered the world with just a few words of guidance. (To prevent spoilers, the introduction rewards and plot will be changed) (The first few chapters, the pace is slower, entering the daughter country, officially opened!)