Eren Yeager's Wife's Manga

Fencing champ Rina is ecstatic after winning gold at the Olympics, but is disenchanted upon waking up as an extra in her favorite novel. Hoping she'll see the hero and heroine's romance up close, she learns that it's been years since they tragically died. Furthermore, their son, Leo, is being treated like a traitor by the very royal family his parents fought to protect! Fueled with determination, Rina raises her sword to clear his name and give him the happy ending he deserves.

Feng Linxi, forced into the palace at a young age, becomes the empress dowager's puppet and impersonates the emperor on the throne. Doing nothing all day, she just pesters the regent, Xiao Chu. Xiao Chu, wielding all the power in the court, wants nothing more than to usurp the throne, so he disregards Feng Linxi's constant flirting. All Feng Linxi gets for her trouble is more punishment from the empress dowager. At first her plight looks hopeless, but after an assassination attempt by the empress dowager, it seems that romance might still blossom between the two of them...

Xuehua, a sensible handmaiden seeking promotion in the harem, is one day entrusted with the important task of serving the feared Princess Bailian, an immortal witch from an enemy nation. However, the diligent Xuehua finds that the "Princess" is actually a man! Deciding to cooperate with "her", Xuehua finds herself embroiled in the harem's maelstrom of vengeance.