MTL - My Cold Gentle Husband - Chapter 6 How could this be

My name is Joo In-gong. The name that my parents gave me meant ‘protagonist’ of the world. Really?

In a world ruled by ten royal families, Saruto was born into the Lewin family (the Dark family). He grew up carrying a promise he made to himself with his mother's last breath: to become the pride of the Lewin family (the Dark family). He is compelled to acquire power to help him achieve his goal. In his quest for power, he begins to uncover the origin of the Dark Power that suddenly appeared in his world without warning. He realizes that his family's history is deeper than he thought. How will he discover his family's history, and will he be able to fulfill his promise to his mother to become the pride of the Lewin family (the Dark family)?

A series of short stories in the world of Toaru Majutsu no Index organized into chapters featuring Kanzaki Kaori as the protagonist, going around the world and space doing missions for the Church of Necessary Evil, however, there is more than meets the eye as each incident is connected.

One chapter was bundled with each limited edition release of the Toaru Kagaku no Railgun anime DVD and BDs, with all of them together being equivalent to a single normal Toaru Majutsu no Index volume

Zhou Leng was once a martial arts genius yet since being attacked by demons half a year ago he has gained no progress in his cultivation.The turning point comes when he heads into the mountain to find his dog, where a majestic tree seems to heal his injuries.“What if that unknown otherworld is a demon lair...”As Zhou Leng hesitates, a vast white shadow of the Frost Giant Tree flashes in the depths of his eyes.“What was I thinking just now?”