Leviathan of the Covenant - Volume 1, Prologue

Shuu is a member of the literary club that can’t write. One day, he gets a mysterious message on his phone from a girl called Eina, and from that impulsive contact, they begin to exchange messages. They talk of things like their shared interest in novels and grow close. However, when they try and meet, they discover a shocking truth. Eina lives… not in the present, but five years in the past! How will their love develop, parted by five years of nights…!?

A man who was once called the world’s strongest agent ended up becoming a teacher after his retirement, to train a new generation of agents. After many years of training his disciples, he was killed at the age of 60 by a secret organization’s ruse and was reincarnated in another world with his memories intact. Though he was surprised by the existence of magic and the strange species in that world, he quickly adapted to his condition as a newborn and took advantage of it. He acquired special magic and gained a massive amount of strength thanks to his rigorous discipline, in order to reach his goal: Resume his career as a teacher which he left halfway through in his previous life. This is the story of a man, who, based on the memories and the experiences of his previous life, became a teacher who travels through the world with his students.

Su Bai, who entered the horror game, obtained all-professional talents, which could light up the underworld professions.

Ghost teacher, ghost doctor, ghost psychologist, ghost painter, ghost massage therapist…

“Miss, please get dressed, I’m your teacher, don’t be shy.”

In the vampire castle, Su Bai said solemnly to a vampire girl.

“Beauty, please don’t worry, the doctor’s eyes don’t distinguish between men and women.”

In the Necronomicon Hospital, Su Bai, who was doing a gynecological examination to a glamorous female zombie, said solemnly.

“Madam, please respect my profession, I am a painter, I only sell my art, not my body…”

In the Devil’s Manor, Su Bai had some headaches. No matter what profession he chose, his charm value was full.

Even driving a taxi is molested by female ghosts.

Can you still play the game? …

- Description from novelbuddy

As the manager of the shopping street, it's Shuichi Chiba's job to provide excellent service to the tenants of the shopping street.“The water pipes in the shop are broken; can you come take a look?”“It's gym time; don't even think about slacking off.”“Are you coming to learn floral arrangement today too?”“Thanks for your hard work; why not relax with a spa treatment?”...Shuichi Chiba walked from one end of the street to the other, massaging his back and sighing deeply.Collecting rent was supposed to be a much less taxing job!Chiba's Diary: The beauty shop's water pipes are broken, and the gym has a yearly membership, so no slacking off.Smut - Milfs - Harem - Mature - Anal - BDSM - Threesome - No Yuri.Note:- It is a translation but i am adding my own stuff to make it a full R-18 novel.