Immortal Mythos: Bound by Void - Chapter 4: The Fox Winthin

When you're reborn as Jorah Mormont you ain't got much. A Dad looking to bale and go spend his days hanging out with the guys on the Wall, a wild Aunt raising your wild cousins you can't stand, an arranged marriage to a girl you never met with a dowry almost low enough to be an insult, and a populace of smallfolk so inebriated and incompetent its no wonder nothing's changed around here in 8,000 years. Hopefully the gold finger granted by Levid's Magically Wheel of Reincarnation can help.A really nice pair of testicles.With that, the right attitude, and a shovel I have everything I need to dig a nice grave to lay in.Or Bag End. Let's see which happens first.

The main character Lei Yu does not have the ability to practice his family’s martial arts. He gets stepped on and tossed around. Due to certain reasons, he leaves the family, coincidentally gains an ability, and makes his own path to becoming an immortal.

- Description from Novelupdates

Kanda Kyoichi transmigrated to Konoha and became a temporary instructor at the Ninja Academy. Fortunately, he awakened the Mentor System.By teaching others, he could earn rewards.Thus began Kyoichi’s career as a “teacher” in the ninja world.Shisui: “Sensei’s unique interpretation of the Will of Fire has given the Uchiha Clan a true sense of direction!”Asuma: “The essence of the jade lies in protecting the people, with the advanced leading the way for the less experienced. Only then can Konoha become stronger!”Kakashi: “He’s my life mentor. He transformed Konoha!”...Years later, in the memoirs of Kyoichi, now the Hokage, he wrote:“I honestly just wanted to be a life mentor!”

The King of Hell sentences you to death by midnight, but I can ensure that you live past morning.

The young man, Qin Lang, received the inheritance of a poison school by chance. He uses poison to kill people, uses poison to save people and he uses poison to chase beauties. With body of ancient extinct poison and a body of a martial artist, he walks around the city, and wanders around in the underworld.

- Description from Novelupdates