Favoring a Concubine and Neglecting the Wife? I'll Protect This Cannon-Fodder Character in the Household Drama

[A Self-Disciplined, Ritual-Keeping Crown Prince] [A Bold and Radiant Legitimate Daughter of a Marquis's House]

A sweet, doting one-on-one romance with both leads devoted only to each other.

After transmigrating into the body of a marquis's legitimate daughter, raised with every indulgence, Wei Hanzhang had no great ambitions. She only wanted to marry her childhood sweetheart and enjoy a happy life together, with no one else between them.

Who knew that before they could even marry, her childhood sweetheart would take two concubines!

Reeling from the shock, she then discovered she had transmigrated into a book.

Her mother was a villainous supporting character who lost the battle for her husband's affections.

Her legitimate elder sister was a doomed cannon-fodder character who was framed and lost her innocence from the start.

Her maternal relatives were a cannon-fodder family that fell with just a few lines in the original novel.

And her...

She wasn't even in the original novel!

How infuriating!

How could this be? She absolutely refused to be cannon fodder!

Since she was here and had been given a life by her parents, how could she fail to protect her family?

If her childhood sweetheart couldn't be relied on, then the crown prince next door seemed like a pretty good choice.