childcare transmigration/regression/reincarnation manhwa

I managed to get myself thrown into a story as a stepmother so jealous of her daughter that she tried to kill the girl with a poisoned apple.
I’d love it if I could shower my cute and lovely Blanche with all sorts of affection, but–
“Hilarious. Since when did you like Blanche so much?”
This god-damned husband keeps getting in my way!
“I am Blanche’s parent as well. I demand an apology for being so suspicious of me.”
“And if I don’t?”
“I’ll visit your bedroom tonight, your majesty.”
“…..”

The possession that happens to others befell on me too. I’m pretty sure that I’m a supporting character… But what on earth is this novel? On top of being a widow with stepdaughters of my age, I’m living a cursed life in which I transform into a black swan every night because of black magic! I need to suppress my tears and change my fate… Not.

Why should I? Why so serious? A duchess by daytime, and a carefree queen of the lake by nighttime. Bravo, my destiny! Life should be spontaneous! As much

Kalia is a war hero and commander that put an end to the past war. But one day, she finds out that she's... pregnant?!

Of all people, the father of the baby is Simon Terroan, her best friend and archmage, whom she spent a single passionate night with.
Believing that Simon doesn't want the baby, Kalia hides the truth of her pregnancy, then retires from her job and disappears while Simon is away in order to have her baby.

But the truth is that Simon has loved Kalia, more than anyone else. And so

My son, Leon, the third prince. I sacrificed everything to make him Emperor. In time, the day my dream came true, holding the Emperor’s crown was my dying son who had drunk poison.

“I’ve...not once been happy since I was born.”

Clutching her son’s lifeless body, Elisha only felt despair.

“Leon…”

Then, when I blacked out and woke up, looking at me was none other than my son’s lovely face when he was still little!

“I’ve taken so much from you with the pretense of it being for you...If this is

She became the wife of a male lead inside the novel that she couldn’t finish.

She was also the supporting character who died out of jealousy of the relationship between the male lead and the heroine.

Daisy, who didn’t want to face such a dark future, came up with a condition instead of marrying the male lead, Carlyx.

“Please divorce me in two years.”

“Sure.”

“A romantic fantasy heroine possessed in a child care novel, ‘My golden baby!’”

Although the child care is a genre that heals the body and mind of a cute and lovely child who becomes the main character and is loved by everyone…
There seems to be something completely wrong with this genre I am in.

Even though it’s the age of glamor and regression, it’s hard child care.
The possessed Leona becomes the stepmother of Rebecca, the only child of the black family, who is the dreamer of a heinous evil