Supreme Spouse System. - Chapter 29: Rias – Crimson Eyes Beneath the Twin Moons

A teenager named Evan Mason was reincarnated into the magical world of Harry Potter and goes to school at Hogwarts!
With only his knowledge of the future and great talent for magic, he takes the path towards the top of the magic world, only to realize that ever step he took, changed everything!

- Description from Novelupdates

She was a medical genius from the Noah Medical Academy as well as a drug producing specialist. After sleeping for three days, she had returned to the ancient era and become the loyal marquis palace’s ignorant and silly young miss.

He was the supreme king of the Jia Luo Kingdom, with prestige around the whole world. With an ice cold face and a ice cold manner, he was entangled by her strong and overbearing manner, vowing to never let go.

Accidentally falling on him, he said, “This king will never suffer a loss.” Never suffering a loss, so he kissed her back.

Accidentally hitting his face, he said, “This king will never fight with a woman, I only nip women.”

Five fingerprints. Not only has he nipped her five times, he still collects interest.

- Description from Novelupdates

Mu Yue traveled to the world of Naruto and became an ordinary chuunin teacher at Konoha Ninja School and a member of the Root Organization.

Fortunately, after awakening the teacher system, you can become stronger by teaching.

In order not to become Danzo’s consumables, Mu Yue worked hard to teach and increase her strength.

“Complete the teaching rated A for the first time and receive the reward – mastery of fire attribute chakra properties change.”

“Under your guidance, Uchiha Shisui has worked hard to practice, and his overall strength has been greatly improved, and he has been rewarded – the Immortal Human Body!”

Under Mu Yue’s guidance, Zhishui understood that the village’s enemies were not necessarily other big countries, but could also be within the village. People who spoke righteously about the will of fire might not necessarily act in accordance with the will of fire.

Obito got rid of the title of being the weakest person in the ninja school, and Metkai became a master of physical skills even earlier…

- Description from novelbuddy

Lin Rui was reborn, reborn in the year 4161, two thousand years later. In this era of highly advanced technology, where the peak of human biotechnology had collided and fused with the culture of Tianji Star, a new path for human evolution was born—’Zhi Zhuang Wudao’, capable of granting eternal life and transcendence beyond the universe. The entire society esteemed the strong, and it was considered an honor to practice Zhi Zhuang Wudao. There was even a group of ’Variant Walkers’ who stood at the pinnacle of the social pyramid, looming over the world with arrogance. At first, Lin Rui couldn’t fathom the meaning of his rebirth. He merely adapted to this era out of a sense of responsibility. It wasn’t until one day that the ’Battle Spirit Ring’, which had come into existence alongside Lin Rui, captured its first Battle Spirit. Lin Rui could let the Battle Spirit possess him for combat, and could also copy all the martial skills and abilities mastered by the Battle Spirit. The Battle Spirits he captured grew increasingly powerful— Lin Rui began to realize this era was his to own. A ’Super Abyssal’, who would overshadow the future, began his rapid development journey at the Tianji Star’s ninth base.