Raidorl Seiken Senki - Chapter 27: Declaration Of War.

The well-known and recognized throughout the Stern continent, strong and mighty, as well as the unique Wizard of magic cures, the most outstanding genius of the whole continent, Jason got into the flow of time, back in the uncivilized era during the first failed experiment, 3000 years ago. This was the period when the magic healers didn’t exist. How will Jason apply his knowledge in this backward era, wherever he reach the peak of glory?

- Description from Novelupdates

As a good-looking Beta with a good family background, Duan Jiayan has lived a smooth sailing life for more than ten years, until he met Lu XingCi in high school.

Lu XingCi’s family situation is better than his, he is taller than him and plays basketball better than him. Needless to say, his grades are a whole tier above Duan JiaYan’s. Even his friends can’t help but occasionally praise Lu XingCi.

Most importantly, every girl that Duan JiaYan has set his sights on, all admitted that they have liked Lu XingCi for a few years already.

Since then, Duan Jiayan has never thought well of Lu XingCi, till the day he received his new medical report. He is a late-blooming Omega, and because he became an Omega this late, it came with dire consequences. Now Alphas will feel the need to beat up other people whenever they come near Duan JiaYan. He himself is now allergic to every Alpha’s pheromone, except Lu XingCi’s.

*

One night during a self-study session, Duan Jiayan became extremely uncomfortable and ended up asking Lu XingCi to bite him and leave a temporary mark.

After finishing the bite, Lu Xing asked: “We Alphas have very bad tempers, now that I’ve bitten you, are there any rewards?”

“Why don’t you…” Duan Jiayan tentatively asked: “Be a little more generous?”

“Sure,” the other party kneeled slightly and tilted down his head, exposing his white neck: “Then you’ve to also bite back. Once you do, I won’t make a fuss anymore.”

Duan Jiayan: “…”

- Description from Novelupdates

as a gamer, who knew the powers will be diversified in the world of Pirates and Navys?this is a story of a person who is thrown into the beautiful, but dangerous and horrendous world of One Piece, as the Holder of the System with the Job of a Gamer.