The Zashiki Warashi of Intellectual Village - Volume 9, Chapter 2: Colorless Prequel@Uchimaku Hayabusa

Lin Jie, a transmigrator, is the owner of a bookstore in another world.

A part-time job contract. He became the cold CEO’s imitation boyfriend. He merely wanted to earn a few small bucks and live a comfortable life, but a pity, he was in constant turmoil since then. Well, life had something else for him despite his wishes.“That… beauty, will there be an increase in wages for conversion from ‘boyfriend’ to ‘husband’?”

What was originally an ordinary day, suddenly became a historical turning point. Enormous, mysterious Cubes appeared all over the world without warning and as if Judgement Day’s spears, inserted themselves into the blue planet.

From inside the enormous Cubes, endless streams of monsters gushed out alike raging tides, utterly defeating the unguarded armies of each state in the blink of an eye.

In order for humanity to preserve its final embers, the heads of states issued orders of retreat, to no longer attack the Cubes but rather to cling to remote cities, which they turned into self-sufficient survivor bases and around which they built 100-meter-tall Walls of Life!

Many years later, while bearing the heavy weight of history, the first expeditionary force brought back a world changing piece of information. The Cubes possessed exceedingly high intelligence and they regularly transmitted mission instructions to humans nearby. The mission rewards were incredible.

Since then, humans rushed out of the confines of the walls and once more set foot on the wasteland!

- Description from Novelupdates

As an Alpha, Val is required to find his Luna as quickly as possible. But when he finally finds one... she seems too young to be his mate?***Elyna thought her life was over when her pack was attacked and she was sold by hunters. With no experience mixing with humans, everything was scary for her. Only Val's presence could make her feel at ease. But unfortunately... Elyna could sense that Val secretly hated her.People said it was because she was too young for Val. But she was actually hundreds of years old though?