Dorothy's Forbidden Grimoire - Chapter 123: Extinguishment

He Lang died by his own hands for the sake of his imperial younger brother’s ambition, whom he loved. He was offered to be reborn in exchange for giving up his past romantic feelings. Reborn without the burden of his romantic feelings, he brings with him a manual to new worlds. He wholeheartedly followed the instructions of the manual to complete the tasks, not knowing that the originally slag gong was blackening…
He pleaded to his affectionate Emperor brother to release him, he pleaded to the paranoid prisoner next door, but until the end he remained baffled.
In the end, he discovered that the full name of the manual was – “Slag Shou Cultivating Manual”
Σ (っ ° ° °;) っ!

- Description from Novelupdates

Riku Barusak is a hard-working child. Despite possessing an innate superior physical strength and having withstood harsh training she fails to unlock her talent as a spiritualist. The failure results in her being thrown away by her family.

Abandoned, the only ones that extended a hand to her were the demons, the greatest enemies of the human race. Serving under them as a soldier she becomes a weapon of human slaughter, a fiend that should never have existed.

Corporate slave Reiji went to another world one day, made one rank higher potions, and li~ghtly made a killer profit!

He used that money to open a drug store, and troubled people who heard the rumors came over…

Eyedrops for an elf troubled over his failing bow aim!

Cough syrup for the dragon that unintentionally releases his dragon breath!

Reiji makes medicine for troubled people, enjoying his leisurely slow life in a rural city.

Miss Su had lived a sheltered life focused on learning the three obediences and four virtues since she was young. Before she could marry, she was killed by the autumn rain. Reborn as a peasant girl in the 1980s, Su Danhong became a wife and also unexpectedly got a spiritual spring! She didn’t expect that her previous life’s embroidery skills were master level embroidery skills in this life? The master was not a master. Miss Su didn’t care. What she cared about was that she could use these skills to make money and not worry about clothes and food. Growing precious flowers and plants, embroidering beautiful mountains and rivers, and enjoying the simple life.This is the story of an ancient girl from a noble family who went through rebirth to the 1980s where she farmed and gave birth.