Death March kara Hajimaru Isekai Kyusoukyoku (WN) - Book 14 - 14-4. Yowok Kingdom

One day, Yoichi who grew up while not knowing his parents has received the news of his father’s death. His father left behind a testament——which said he is to pick only one out of five ‘little sister candidates’?!

Xuanyuan was reborn into a strange new world where training to be a Xian was a cornerstone. There was however something ancient dwelling inside his body. He could now devour all of creation…

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

A young love leads to a lifetime of entanglements. Zhao Mo Sheng is a university student with a sunny disposition. The bright and cheerful Mo Sheng fell in love at first sight with He Yi Chen, one of the top students from the Law Faculty. However, his poor communication skill, makes her depart sadly for overseas. Seven years later, Zhao Mo Sheng returned home and spotted him immediately in a crowded supermarket, …….

This is a very short and sweet story about two college sweethearts, who separated on a bitter note but fate tosses them together again seven years later.