Master Pei's Wife is a Devil Concubine - Chapter 20

Qin Shiwu grew up listening to his parents’ love stories from an early age.

He learned that his mother was known as a beautiful, gentle and virtuous Omega at school.

He learned that his father was known as a talented and courteous scholar Alpha.

Rumor has it that when they were in high school, they fell in love at first sight, became a harmonious couple and never had a single quarrel.

Once he transmigrated, he went sixteen years back to the time when his parents were still in high school and became a little fool who was bullied by everyone.

Who will tell him——

This person who grabbed him by the neck and shoved him to the ground! The super as*hole school bully who can’t get 100 points in all nine subjects is his father?!

That cold, unfeeling, kaolin flower, iceberg person, the most alpha Alpha in the whole school whom no one dares approach within a 500-mile radius is his mother???

Wait, mom! Were you so wild when you were young? You’re pretending to be an alpha!

Wait, Dad!! That’s your wife!! Is it really okay for you to fight with him now!!

- Description from Novelupdates

The world was once at war with 10 alternate worlds. This was known as the Concept War and our world won 60 years ago. All of this was concealed so no normal people are aware of this fact in the current time.

After the death of his grandfather, the high-school student Sayama Mikoto is suddenly summoned by the giant corporation IAI. He learns this world is headed for destruction due to the acceleration of the Minus Concepts. To prevent this, negotiations must be undertaken with the survivors of the other parallel worlds so their 10 concepts can be released.

And so Sayama is caught up in the final battle to clean up after the Concept War which left behind so much enmity.

Yun Bixue is in dire straits—