Monarch of Time - Chapter 47 - 47 Desires

If the Red Dragon's head could pour out half a skull's worth of magma, the world would then witness the rise of the most enlightened monarch—the Red Dragon Book.David closed the book, a puff of Dragon Breath turned it to ash, and he whipped himself up a bottle of Fiendfire Elixir.To hell with bloody rationality.I just want to do as I please!This is the story of a Red Dragon rampaging through an alternate world, constantly rewarding itself by embodying the Seven Deadly Sins.

Aren Frost, CEO of Titan Crest Entertainment, finds his life crumbling before his eyes on the day of his 22nd wedding anniversary.His wife was in bed with the chairman and owner of his company. This man was his best friend for whose company he dedicated his life to.“How can you do this?” He asks, yelling with tear filled eyes.“This isn't something new.” The man smirks, “We were lovers before you even got married.”Aren's world crumbled.“Even the daughter you cherishes isn't yours.” The man reveals, snickering, “She is my biological daughter.”Aren tries to kill the man in anger, but his bodyguards appears and takes him away. He is killed, disguised as an accident.Just when he thought it was over, he finds himself in the body of an idol, hated by fans. The idol was retired, and condemned for being the reason for group's disbandment.Then—[Ding!][Welcome Host, I'm the Acting System.][Rise and become the superstar of this generation.]Aren, however, didn't care.He wanted revenge!He will take everything precious away from him. He took his wife, now, Aren will take every woman he cares for. He will turn them against him.

Witnessing her boyfriend cheating on her with her bestie, Shiyao was so angry that she went to a pub for fun and met a man, who was really a piece of work. After a crazy night she fled away, but was embarrassed to know that the man she slept with was her boss You Ze.
Jesus, give her a break!

- 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