Dungeon Life - Book Two, Chapter One.

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

Through a chaotic world rife with war, where demons roamed freely, he found himself in the body of the patriarch of the Luo family, whose life was nearing its end, with one foot already in the grave.Just after arriving, he was about to die?What kind of mortal suffering was this?Just as Luo Changfeng felt bewildered and on the brink of despair, he discovered that he could actually consume the vital energy of the Luo Family members to increase his attributes.A little tap, and his lifespan grew.A little tap, and his cultivation soared.A little tap, and his cultivation technique reached perfection.Thus, Luo Changfeng embarked on a path of empowering his family, continually drawing upon their vitality to strengthen himself.

A world where one’s life was decided by one’s talent called Gift.
The main character Erio Scarlet who was born in the house of influential noble family that had produced a lot of Holy Knights manifested a suspicious gift Incubus in the conferment ceremony. Furthermore the skill attached to that Gift was only one embarrassing skill called Peerless.

Erio was banished from the city because there was no way his indecent existence could be permitted in a family of Holy Knights but……somehow he went through an amazing growth when he dealt with his horniness though!?

In addition when his childhood friend who was bestowed with the Gift Sacred Knight chased after the main character because of her love for him reverse ra-……did it with him, a lot of powerful indecent skills showed up and on top of that they even got bound by Master-Servant contract……!?

This was the indecent heroic tale of the boy who was gifted with indecent Gift rising in the world while [getting along] with a lot of girls.