Isekai / RPG game like / Fantasy World fever 3

Abused and caged by her adoptive father and dying in a fire at the end, she went back in her childhood the day she was adopted. During her escape she was save by a child and a duke who might be her true family?!

She has social anxiety and is naive. Duke doesn't know how to act. They interactions are understandably akward. Prince (kid who saved her) is a bright smart and good kid but his dad (King) seems like an arrogant dushbag. Cute but cliché for now.

Emperess save student by pulling him out of mirror while he fell to his death. While not knowing what exactly happen, he now act as her concubine while she help looking for a way back.

Unique plot. She became his only phone contact for unknown reason. He can see emoticons above her head and he can even geolocalise her. He act as her 3rd concubine to avoid power struggle if she were to choose one of the 1st two. Don't know where this is going but definitely curious!

Became novel villainess so befriend ML to avoid death flag... Until her BFF (og FL) told her that... he might be the villain and things might go bad.

Edgy drama. Keeps you on edge. She read the novel long ago so didn't remember it well and forgot the plot twist. Misunderstandings creating a kind of toxic environment. Tsun-yandere dark user ML (but wait for his POV, truth is slightly different). Frank MC working with Smart Og FL (has prophetic Dreams). Og ML is typical good knight.