Kyoukai Senjou no Horizon - Volume 1, Chapter 14: Covert Operatives Under the Night Sky

Broken-hearted and drunk, Yoshida, a 26-years old salaryman, stumbled upon a runaway-from-home high-schooler on his way back from the bar.

“Hey, you. JK.”*

“What the heck are you doing out here. Go home already.”

“Uncle, let me stay at your place for the night.”

“You can do ‘that’ to me if you let me stay.”

“If you meant that as a joke, it’s not funny.”

“I’m not joking. It’s fine by me.”

“Then allow me to tell you that I have no interest in brats.”

“Hmm?”

“Then, just let me stay.”

Notes:

[*] JK is slang for Joushikousei (high school girl)

A man who was once called the world’s strongest agent ended up becoming a teacher after his retirement, to train a new generation of agents. After many years of training his disciples, he was killed at the age of 60 by a secret organization’s ruse and was reincarnated in another world with his memories intact. Though he was surprised by the existence of magic and the strange species in that world, he quickly adapted to his condition as a newborn and took advantage of it. He acquired special magic and gained a massive amount of strength thanks to his rigorous discipline, in order to reach his goal: Resume his career as a teacher which he left halfway through in his previous life. This is the story of a man, who, based on the memories and the experiences of his previous life, became a teacher who travels through the world with his students.

Yang Yi was orphaned as a child. Foul play was ruled out by the authorities, but Yang Yi always suspected otherwise. Finally, once he was older, he met one of his father’s old friends who revealed the truth about his parents’ deaths. His father was an intelligence broker and had stumbled upon a mysterious, powerful independent spy organization. Both his parents’ were murdered to ensure the organization remained a secret.

Since he was unable to forget why they died, due to his eidetic memory, the only way he could be at ease was to seek revenge. In order to fight against the mysterious organization, he would first have to train in the art of espionage. However, not even one of the national spy agencies was willing to accept Yang Yi into their ranks due to his father’s sensitive identity.

Left to forge his own path into the field, he seeks out his father’s old allies for help. He learns how to be a spy in unexpected places while gathering the resources and allies necessary to form his own private spy organization.

Follow Yang Yi in his quest for vengeance! Follow Yang Yi as he prepares for A War Between Spies!

- Description from Novelupdates

He called me his ruin. Then he made me one.Alpha Shiloh's rejection wasn’t just a scar—it was a betrayal. He left me shattered. Broken. And I had to rebuild myself in silence.I almost forgot the way his touch once burned like salvation.Now he’s back.Not to beg forgiveness. To bargain. A deadly mission, he says. He promises freedom.But then presence ignites my wolf into a frenzy. She thrashes, desperate to claim him again. But I remember the coldness in his eyes when he exiled me. The way the pack turned their backs as I crawled into the wilderness, half-dead and wholly broken. Hate simmers hotter than desire.Yet here I am, bargaining with the devil who shattered me. Every moment we share is a lie. He doesn’t know about the shadows I’ve fed, the truth I’ve buried.Or the child.One whisper of its existence, and the pack will paint the forest with my blood.But the closer we get to completing his mission, the harder it is to hide… from him, or from the part of me that still craves him.Freedom has a price.So does vengeance.And I’m not sure which will destroy me first.