Toaru Majutsu no Index: New Testament - Volume 18, Chapter 1: That Which is Necessary to Survive - X.

The whole life of Li Jingzhi could be concluded with one sentence: His ups and downs in life is all due to Si Luoming. When he was young, he dreamed to be a person like him…Till the end she finds that he hated her, especially when she “murdered” the one in his heart indirectly. Since then, he has never hidden his hatred for her. And then she knows her life has already been messed up all these years…

The wife is first, the country is second, and the husband is of lesser importance.

All of his life was spent riding a war horse and accomplishing meritorious military services. But what was the result? In the end, he was cast aside once he had served his purpose.

Out of selfishness, he had favored his consort and neglected his wife. Ultimately, the one who stood by his side was the wife that he had neglected for 10 years…

After being reborn, Jing Shao decided to repent and turn over a new leaf…

Standing outside the door while holding a pillow, Jing Shao gazed at the sky. He must first mend his relationship with his wife. Jing Shao formed a fist and knocked on the door, “Jun Qing, I know my wrongs, let me in!”

- Description from Novelupdates

“Look at you, you were this teeny-weeny when you were little.”Using both hands, Shao Zifeng gestures how small his pet beast used to be. He then raises his head and looks at the gigantic being in front of him.“Just how did you grow into this ferocious form?”

The male student, Fukai Nagamasa, ignores his studies for college entrance exams in favor of following the path to chuunibyou. As he fainted during night cramming session before the exams, he realized that he was transported to a parallel world as a feudal lord in the Sengoku Era. Not to mention that suddenly, he was marrying the sixth Demon King, Oda Nobunaga’s little sister, the one who was purported to be an unrivaled beauty?