Kyoukai Senjou no Horizon - Volume 7B, Chapter 27: Sensor of Corners

Codename-Anastasia

Transform into Divine Dragon and dominate the world!
He is the only Divine Dragon in the sea who founded an underwater Dragon Palace.
With Crawfish Soldiers and Crab Generals as his followers, wild sharks and gigantic octopuses as his subordinates, he is the dragon that rules the city.

- Description from Novelupdates

Kang Li woke up in the body of the sickly beauty, the youngest daughter of the Kang family in Aoli Village, who had been spoiled and pampered all her life.The original host had a tough life, first being dumped, then marrying a divorced man in a fit of anger to become a stepmother, only to find herself unfortunately becoming the control set for another stepmother in the courtyard.She could certainly be considered a top contender for cannon fodder among supporting female characters.But to Kang Li, none of this was a problem.All she knew was that the so-called divorced man was a returned overseas research talent, busy with work, with a high salary and good looks, and was hardly ever at home. In these times, where food and clothing were scarce and communication was done by shouting, marrying him was nothing but good news to her, who just wanted to live the life of a salted fish.Kang's Mother: ...my daughter's gone silly!Brothers (sisters-in-law, nephews, and nieces): ...our sister (young auntie) has gone mad!However, apart from the head of the household, Captain Kang, the rest of the family were all sweating on Kang Li's behalf, worried that the delicate and frail treasure of the house (sister, young aunt) wouldn't be able to handle the grievances of being a stepmother and might hurt herself from the stress.The villagers who knew about the Kang family's situation gathered together, spewing sour words and gossiping, especially those who bore no good will and were just waiting to see the Kang family's downfall.Yet, Kang Li's life after marriage was not only blissful, but her husband doted on her, her stepchildren adored her, calling her mom the moment they opened their mouths. They clung to her like people possessed, and the wife (stepmother) had them following her every step.A certain flabbergasted system: I thought the host I was bound to was bronze-tier, but it turns out she's actually king-tier.Luo Yanqing was naturally indifferent, with only work on his mind, but somehow, he started to find himself looking forward to holidays, although he rarely managed to go home once a whole year.

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.