Naruto System in One Piece - Chapter 46: I Will Protect You

After living as a famous Korean vlogger-slash-mukbanger, Neoma died a (shameful) death and regressed to her tragic first life— the life where she has to live as a hidden princess with a tyrannical father and a yandere twin brother.

She died at the hands of her psycho brother in her first life. But luckily, she charmed her “big brother” this time. Her father remains a sc*mbag, though.

But a blessing in disguise happened when her twin brother got “sick.” Because of that, she has to pretend as the “Crown Prince,” forcing her father to treat her well.

She thought she was finally on the road to becoming a lady of leisure.

But, despite her laziness, she still ends up completing royal duties that put her closer to the throne than her sick twin brother. The next thing she knew, they already prophesied her to be the first empress of their very patriarchal empire.

Now Neoma finds herself in the middle of the succession war she never wanted to be involved in!

After dying in an oddly anticlimactic vending machine accident, Kazuki Ren is reincarnated in the demon realm—not as a hero, not as a villain, but as the only human male student enrolled at the mysterious Academy of Ruin, a school where all the professors are demon lords and all the students are powerful, beautiful she-demons.Ren is told he has one task: survive.But there’s a catch. The Academy’s darkest secret is about to awaken, and Ren holds a hidden power that could either destroy the demon world... or rule it.Now surrounded by seductive demons with hidden motives, eldritch tomes, forbidden dungeons, and twisted exams, Ren must master his ability—or be consumed.Magic, mystery, danger, and temptation await in this dark academia harem fantasy.

An unknown disciple from a small sect battling against the strongest in the cultivation world! The long journey working at cultivation, the realization of destiny and the chance to reach the apex of the world.

Some are born great, some achieve greatness and some have greatness thrust upon them. Zuo Mo is a zombie faced low level cultivator in a minor sect of a little world. Ever since he was picked up by the sect leader two years ago, he has no memories of his earlier life except a recurring nightmare. Navigating the rigid class structure and intricacies of the cultivation world, as one of the lowest possible of the lowest class, Zuo Mo’s dream is to earn money, and lots of it, through being a spiritual plant farmer.

A chance occurrence reveals that someone powerful had changed Zuo’s features and erased his mind. The money grubbing zombie decides to set out on a journey of cultivation to find out answers. Fate colludes with chance, the drums of war are beating, the ghost of his past is coming… …

- Description from novelupdates

She is an expert in medicine, the only daughter of Yun Tian, Yun Valley’s master.

Her parents died, leaving her alone in this world. She fell from heaven to hell. She had a marriage prospect but her future husband broke it off. The entire world view her as a joke.

She blossoms in Feng Yun Hall, with unparalleled wisdom and startling beauty.

Against all the people eager to make a move, she lifts her hand first. Kill the chicken to warn the monkey.

But nobody knows that the soul within her has long been replaced by someone from another world.

She has no regret in the past life and originally plans to live an idyllic life, but because of the same question from the past life, she gives up the peaceful life and steps into the power struggle for imperial power.

- Description from Novelupdates