In Different World with Naruto System (WN) - Chapter 10 Leaving Magical Beasts Forest.

Qi Tian was determined to design the most advanced aircraft engine but accidentally lost his life while saving others. He then transmigrated to the National Master Manor in the Cultivation World and became a disciple of the National Master, with an extra engine appearing inside him.Whether it's enemies or spirit stones and elixir, they all can serve as fuel for his engine. With the engine roaring, his cultivation journey is as unstoppable as a flying plane.As a National Master, he assists in setting up emperors and selecting heirs. The nation thrives, and the people live in peace.As a cultivator, he sweeps away all kinds of spirits and demons. Emperors bow their heads, and warlords make way.What did you say? A monk wants to bring three great demon cultivators through here? Can you tell them that my engine needs an upgrade?[This book is written in a refreshing style, making reading easy and relaxing. Your support is greatly appreciated.]

A boy from 21st century Earth, met an accident and later was reborn in Naruto’s Ninja World.
He is born in Uchiha Family and becomes the useless brother of Itachi Uchiha and Sasuke Uchiha…. Let’s see how he changed the Naruto world.

- Description from Novelupdates

From the day Qin Luo acquired the system, he set his sights on the aloof school beauty.The first time, Qin Luo brought milk tea to confess his feelings and was rejected.The 12th time, Qin Luo brought breakfast to confess his feelings and was rejected.The 48th time, Qin Luo brought roses to confess his feelings and was rejected.The 99th time, Qin Luo stood outside the dormitory loudly confessing his feelings and was rejected.Inside the girls’ dormitory, the school beauty waited and waited, but Qin Luo’s 100th confession never came.She took the initiative to find Qin Luo and asked, “Why didn’t you come to confess?”Qin Luo responded, “Miss, do we know each other?”The school beauty: “???”The next day, the school beauty appeared holding milk tea.Classmates exclaimed, “She broke character! The aloof school beauty broke character!”

In Japan of 1992, just after the economic bubble burst, society's public safety began to deteriorate. Xu Tianze finds himself transmigrated into the body of a detective named Aoyama Hidenobu, and the moment he opens his eyes, he discovers himself bound up tightly...Entering the new century, a prestigious magazine proclaimed that although Japan has lost a decade since the 90s, they gained a legendary figure like Aoyama Hidenobu.Regarding this, some Japanese nationals expressed: 'Damn it! We'd rather lose another 100 years than have this traitor to our country!'This book is also known as 'This Tokyo is Somewhat Hot.'PS: The protagonist is a rascal, acting with contempt, decisive in killing and fighting, purely for the thrill, not for the faint-hearted.