The Incubus System - Chapter 728: Because of Your Incubus Blood

Tristan never thought his life would lead where he would be signing all his freedom away, makeup masking his true identity, and walking toward a bond he never agreed to. All to protect his family and survive a world that thought little of him.Alpha King Mitch is powerful, feared, and completely uninterested in love. For him, this is just another duty—an arranged union meant to quiet the pack elders. But when their eyes meet, something shifts. Tristan feels it, even if he’s terrified of what it might mean.Tangled in secrets and bound by a lie, Tristan must navigate a fragile dance between duty and desire… all while hiding the one truth that could destroy everything.

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

Xiao Ze, who was dedicated to the people and vowed to become a generation of Ming Jun, accidentally fell on a little lady.
The little lady was born beautiful and lovable.
So Xiao Ze accepted his life and got the name of fear.

ps:
①The male protagonist has no concubine, and he is dedicated to serving the country.

- Description from novelbuddy

The Saint: “Bro Yi, Can you make me your servant?

Yi Feng: “What? A Saint like you wants to become my servant. Do you have any shame?

The Saint: “My sister is very beautiful”

Yi Feng (His eyes is glowing): Little Saint, you can follow me from now. All right, remember to tell your sister to come!

The King: “Yi Feng! Your bastard, what are you doing?

Yi Feng: My bad! My bad! My king, I just want to stroll in this harem a little bit. Who knows those girls have been following me like that?

- Description from Novelupdates