Death March kara Hajimaru Isekai Kyusoukyoku (WN) - Book 2 - 2-3. The Chant, the Soldier and the Noisy Afternoon

Xu Mo, a modern high school student was sent back in time to Jing Kingdom and found herself trapped inside of the body of a princess with the same name.

She had barely recovered when she learned of an unparalleled fiancé and in a daze, they got married. Then the stunning genius physician who normally does not pay attention clamoured to marry her. After that, there was a cold general, a flirtatious lord, a tsundere young master……

As it turns out, this was a male-dominated dynasty. Because the female population was sparse, the entire nation shared wives regardless of rank or nobility. Is it feasible for someone who wants to maintain monogamy in this dynasty?

- Description from Novelupdates

Marrying her best friend was a dream come true for Kelly, but everything truly has a limitation.Pierce is Kelly’s first love, but as his best friend, she knew well there was always another woman deep in his heart.Lexi Gilbert. The woman Pierce could never forget even if he had already been arranged to marry Kelly.***Kelly finally realized their happy marriage of the last three years was just a beautiful dream when Pierce asked for a divorce just because Lexi returned.She could only be his best friend even if she was carrying his baby.***Since their friendship had become a cage, Kelly chose to set him free, as well as the miserable herself.But why then, it was Pierce who became the one who refused to move on?To make matters worse, her devil stepbrother also domineeringly stepped in at the same time, asking her to be his.***Her Prince Charming vs. Her Devil Stepbrother?How could Kelly save her heart in this battle of love and hate?

Long Fei, a cross-timer and doujin, is an otaku who traveled to another world. In the original world, he was an otaku fan of Gundam and military science fiction.

He died in an accident and was reincarnated into another world. The Gundam works he had read before his death and the techniques in various military novels could be brought to another world.

How would he use the Gundam that Long Fei created? What waves can be caused in this different world?

- Description from novelbuddy

A story of time-travel. Sly and cunning, she unexpectedly became a sickly noble lady whose fiancé is merciless and demotes her to a lowly concubine. She sneers and bravely breaks off the engagement. To hell with scumbags, marry heirs to lords, blind the courts with her brilliance.

But, my Lord, we agreed that we are only partnering to scheme against others, when did you start to treat acting as real? Hey, hey, don’t touch me.

The Lord smiled slyly, “Your hands are too cold, let me help you warm them… Your feet are cold too, let me help you warm them.”

“Why don’t you just say that my whole body is cold and you need to warm it all up”, Murong Xue said indignantly.

The Lord nodded, “Good idea!”

Murong Xue – speechless. Hey hey hey, where, where are you putting your hands?

- Description from Novelupdates