Naruto: Seeing Through the Cruelty of the Ninja World

No system Uchiha Yozuki was originally an ordinary person in the real world, but due to an accident, his soul traveled to the crisis-ridden world of Naruto. When he first arrived, he had the kindness in his heart and tried to integrate into the ninja world with a gentle and friendly attitude. However, kindness in this cruel world is like a weak lamb among wolves. After experiencing a painful lesson, Uchiha Yeyue completely saw through the essence of this ninja world-the weak and the strong. The so-called kindness, in the face of absolute power, is nothing but a useless burden, and will only become a talisman to the destruction of oneself and those around him. From that moment on, his heart completely changed. The kindness he once had was deeply buried, and was replaced by an extremely determined and ruthless heart in order to become stronger. He no longer has any mercy for his enemies and is no longer bound by false moral concepts. He knows very well that only by possessing absolute strength can he protect everything he cherishes and gain a foothold in this world full of killings and conspiracies. (Single heroine, not a virgin, cruel and ruthless)