Toaru Majutsu no Index: New Testament - Volume 3, Chapter 3: The Target of the Scorching Lava. Case_to_War.

Mianmian felt that the last 20 years of her life was a big tragedy. Her father didn’t love her and her stepmother only pretended to treat her well. She only wanted to work and study hard so that she could leave the house after saving enough money, but ended up being harmed by her so-called family. However, Su Mianmian never thought that the seemingly dark and bottomless abyss was actually her starlight of salvation.

As a useless spoiled wild child, Bai YiHan finally brought about the end of his family, chased away the one he loved and caused his own death. After rebirth, he decides to cleanse himself and work hard at being a good child. But a lot of things don’t seem to be as he expected…

Bai Pa + Bai Ma: My son’s so obedient. Someone must be bullying him. This cannot be forgiven!

Bai Big Bro + Bai Big Sis: If my little brother’s sensibility comes from his suffering, then I’d rather he be a spoiled brat forever!

Mu JingYuan: If HanHan hits you, you must accept it. Yet you dodged…The wind’s changing. Someone should be bankrupt to make HanHan smile.

Bai YiHan: …I was so wild in my past life. Your involvement are undeniable!

This story is speculative, speculative, speculative. Important matters must be said thrice. Everything is about speculative time-traveling.

- Description from Novelupdates

After reviving unexpectedly, the concubine’s daughter was no longer a coward like before, but a hard nut.

Flamed her up and bullied her?

Come on!

She came from the 21st century! How could she willingly embrace such destiny?

“Since you ask for it, see how I will torture you!”

She punished the scums and struggled against bad minions!

See how the concubine’s daughter Dong Ling would stand up and master her own fate!

- Description from Novelupdates

I am going to die.That’s how the game goes.The less I know, the better—a hardcore otome game where the tragic villain, Johan Von Matilda, is fated to fall by his own daughter’s sword.A mere stepping stone for the protagonist to win the main heroine’s heart.And now? I’m him.“…Are you kidding me? I won’t let my daughter become a simp with no personality!”The problem is, I am just a healer with money and influence; my daughter hates me and is obsessed with him.The protagonist is obviously the one with unlimited plot armor. Blessed with Schrodinger’s Cat—an overpowered skill that makes him literally unkillable.Ding![System: Gambler’s Gambit Initiating…][All choices lead to a different ‘ending’… Choose wisely.][Earn points based on your choices. Points can be used to gamble.]“Hahaha! Be prepared to be broke, system! People don’t call me the Gacha God for nothing!”[Quest 3 Triggered: Fate had another plan][1. Actually become a traitor and betray the kingdom] (Rewards: 5,00,000 points)[2. Start twerking aggressively towards attacking Selene] (Rewards: 1 Million points)[3. Kill yourself dramatically: Yell to Leonard that “they will come after you too old friend” and bite your tongue.] (Rewards: A massive civil war will break, killing millions all over the world)[4. Beg for mercy while calling Leor your father. Kneel and ask if he’s proud.] (Rewards: Two million points and a possibility of survival.)[5. Accept your fate] (Rewards: Death)“...WTF!!”Yet a devious grin appeared on his face.This time, he will decide the ending, no matter what.“What?”“She’s still alive?”“…Wait. This isn’t how it was in the game. Why is the protagonist… changing?”[Warning: Even though at face it appears like any normal webnovel, I will warn ya there are many uncomfortable things and strong topics, grimdark stuff, and tragedy, more like Reverbed Inanity, but with dark humor, not everyone can read it with straight face, so be prepared, but I think even if you never read books like this, you will like this, cause it's done in a pretty fresh way.]