The Game's Extra: Azhriel Odyssey - Chapter 14: Copy.

Utsuro no Hako to Zero no Maria, or The Empty Box and The Zeroth Maria, tells the sinister story of Kazuki Hoshino, who is almost madly attached to his everyday life, and his antagonist Aya Otonashi, who suddenly transfers into his class—for the 13,118th time. She majestically announces to “break” him, without paying heed to anyone else around them.

Jinhyuk is a person who likes to immerse himself in the role of the Villains but there is one villain which he particularly hates,

Reed Adeleheights Roton, the false final boss of the game.

The one who created the Seven Disasters.

The one who due to his inferiority complex led to his own doom.

The one who turned a cute innocent girl into the monstrous First Disaster codenamed Cosmo.

“If I was the Villain then I would have raised her a little better.”

And thus God granted his wish and now he was the false final Villain Reed Adeleheights Roton, the creator of the Seven Disasters.

How different would the world turn out to be now?

When the unassuming Du Yunlong encounters Wang Zihan, the eldest daughter of an esteemed immortal family, what kind of tale will unfold between them? The first step into the world of cultivation, hastened by the opening of the initial mystical technique, finally sets Du Yunlong on the elusive path to immortality.From a cold, steel-hearted maiden to a gentle and kind mentor's wife, a lovestruck young girl, a faithful and flawless widow, a serene and virtuous nun, a fateful encounter with a sophisticated lady, and a devoted female sword cultivator—how will each of these remarkable women weave their stories with Du Yunlong?He seeks not to soar through the heavens on a sword, nor to conquer the three realms. To Du Yunlong, love is eternal, and his ultimate path is simply to cherish a lifetime with the one he loves.

After choking to death on a watermelon, Rong Jiahui thought that she would enter the netherworld and be reincarnated.

But when she opened her eyes, she discovered, to her very horror, that she had returned twelve years into the past…

Looking at the beautiful and awkward “little brother” that would be conferred the title of Marshal in the future for outstanding military service, she almost let out a snort of laughter.

She firmly decided to hug the thigh of this little brother, and climb to the top of her life!

The plan was beautiful, but it had just one problem.

Why had this little brother… suddenly turned into…

A little sister…

- Description from Novelupdates