MTL - Comprehensive Manga: Starting From Teaching Hinata’s Black Coffin, It Will Be Returned 10,000 Times - Chapter 307

Having spent her childhood confined in chains, Alice was a child who knew neither love nor joy. Scorned by her family while being tortured in the name of the greater good for years, she grew numb to all feeling and thought. That is, until one day, a man in black offered her a chance to escape.There were once rumours widespread of an endless hell, a land of glorious death and dreadful opportunity. Fools went in search of it, and the clever never ventured into it. Only when its baleful mysteries spilled unto the earth did all hear its name — the Abyss.A single drop of its blood could give someone the power to control shadows, move faster than sound, or strength greater than the strongest man. Yet, it all came at a cost; the blood would always make sure those who consumed it became part of the Abyss, with one exception — Alice. Cast away by her own blood, it was her destiny to rot in a gilded cage.But, that fateful day changed everything. Gifted a second chance at life, a chance to turn her life around and claim vengeance against her family, a chance to dive deep into the Abyss and gain the power to govern her own fate, Alice took his hand, unaware of the destiny unfolding before her.

She is the rising (new) movie queen of the entertainment circle, who is also Beijing’s Ye Family long-lost Second Young Miss. Everyone knows that the Ye Family Eldest Young Miss is the chairman of Fenghai Group; Ye Family Third Young Master is a Major General of the military area; and yet, Ye family wants the second young miss to come back home, but she is just a flower vase (pretty face) of the entertainment industry.

Father doesn’t love her, Mother is not fond of her. However, no one knows that she is merely a vase on the surface. In fact, she is actually the top special agent that gives endless headaches to all international big shots. She, is higher (loftier) than the military industry added together!

But she didn’t imagine that, with one slip, she unexpectedly got bound to a system that draws energy from completing tasks.

From then on, she crossed numerous parallel worlds and rewrote all kinds of miserable lives. Regardless of which world, she lived flourishingly. But she did not expect to attract a mysterious force’s big shot during these tasks…

When she draws the energy to return to the summit of reality, With the body of Ye’s family second miss, she can have whatever she wants​, but the family business can’t accept it. It’s just that it’s not good to have a man who is always behind her, how can she be worthy of the title ‘Top Secret Agent’ given by the international big shots?!

Wait for her to unmask her identity, one by one, it is precisely the time for the Phoenix to overlook the land under the heavens.

One is a mysterious teenager who is frighteningly outstanding. The other is a top agent who is famous all over the world. It’s a love showdown between the strong and the strong.

- Description from Novelupdates

Based on the popular Vocaloid series, by HoneyWorks, called “Kokuhoku Yokou Renshuu (Confession Rehearsal)“:

Natsuki, a third-year at Sakuragaoka High School, who holds unrequited feelings for her childhood friend, Yuu, who’s in the Film Club. However, instead of being honest about her feelings, she makes him be her confession “rehearsal” partner. Unable to say her true feelings, things start to get complicated when Miou and Akari, who are also in the Art Club, get involved! Will she ever be able to confess for real!?

In 2036, humankind steps foot on Mars for the first time.