Start in DxD as Motohama: Leveling Up in Another World - Chapter 12: Another World (III)

The 18-year-old Tong Yan has gotten married. The marriage partner looks mature and handsome, but also serious and stubborn. After living together, he felt that the other man was just seriously raising a child. At least before they got together, Tong Yan never thought he was capable of speaking such words as “I can’t sleep because I miss you so much”.

A fuming Tong Yan after pregnancy: Don’t tease me (╥╯ ^ ╰╥)

A Zhuo Xiang Ming asking for a good morning kiss while fixing his tie: People who constantly feel they’re being teased say they’re afraid to speak

- Description from Novelupdates

A 30-year-old NEET is reincarnated into the body of an otaku that choked to death on instant noodles. As he comes to grips with his new life, he realizes that this world is subtly different from Earth. The denizens of this world are far better looking, and this new world also possesses futuristic technology as well as mysterious Yin Yang masters!

After reincarnating, he realized that he was endowed with a miraculous game-like system, which enables him to increase his own stats and transcend the limits of the human body. This system even has a game-breaking ability to save and load in real life!

In this new world that’s akin to a 2-D game, he just wants to enjoy life and head for a glorious future… However, he is quickly embroiled in a complex plot. Can he unlock his true potential and utilize his system to break the shackles that confine him and discover the truth about his previous body’s circumstances?

- Description from novelupdates

Three Emperors have died in quick succession. The prince whom nobody had taken notice of unexpectedly succeeds to the throne. He is quickly plunged into layers upon layers of danger. The Empress Dowager dislikes him, wishing to install a younger, more obedient Emperor. His half-brother dislikes him, accusing him of stealing the throne that is rightfully his. The palace attendants and servants dislike him, believing that he is not a true Emperor. The Child Emperor must save himself.

She was a medical expert, talented and beautiful. She was reborn as his little wife. Her in-laws did not like her, her husband did not love her, and she was as timid as a mouse. She was weak and easy to bully.