Reincarnation Of The Strongest Sword God (Web Novel) - Chapter 3468 - 542 – Advanced Abyssal Trial

One day I got a younger sister.Only I know her true identity.

Thousands of races coexist, where the sword and Magic shine together, the Human Race, Sea Race, Elves, Dwarfs, Orcs ... all rush to unfold the light of civilization, composing their epic tragedies!(A Lord's Farming Tale)

“With my knowledge, give me a fulcrum on which to place it and I shall move the world!”

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Sorcerer Continent—a world where sorcerers exist. Wielders of arcane knowledge. Masters of all elements. Sovereigns of space and time. These sorcerers governed the world with their unrivalled prowess. One day, a young man awakened into this world with his past forgotten and no place to call home. Follow along as Glenn, by relying on his luck and wit, tries to survive and advance in this unforgiving world. Entangled within the machinations of fate, political schemes, power struggles and wars, he forges his own path and creates a place for himself.

- Description from Novelupdates

As a virtuous wife, does it include tolerating his cousin, enduring his concubines, bearing his mother?