The Tyrant Empress is Obsessed with Me - Chapter 31:

Qin Ran grew up in the countryside. She disappeared for one year and lost a year of high school.

One year later, she was taken to Yuncheng by her biological mother to attend school.

Her mother said: your stepfather is from a prestigious family, your big brother is a genius, your younger sister is a top student, you must not lose their faces.

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Everyone of status in the capital has received a warning from Cheng family’s Junye: Junye’s wife is from the countryside; she doesn’t understand the circle, doesn’t understand the current circumstances, doesn’t understand the financial markets. Her character is very… in short, please excuse me.

Until one day, Junye investigated a big shot, his subordinates looked at the sockpuppet that had come off her while she said she knew nothing about it… they sank into a bewildered silence.

It was probably a story of two big shots trying to hide their sockpuppets so that the other didn’t feel inferior.

The older young Lisko woke up and found that he had become an American. He took over his father’s ranch and began to live in the United States.

- Description from novelbuddy

When The Cute Kunoichis Spied on Their Teacher's Secret is a light novel written by Kazuma Kamachi and illustrated by Ryuushi Tajima.

The story takes place in a world where Japan never ended their isolationist phase, and agents from foreign powers are always threatening to steal the country's advanced technology. In order to combat this threat there has been a resurgence of ninjas that use Strategic Martial Arts, techniques that combine cutting-edge modern technology with a traditional foundation of martial arts and ninjutsu. The story follows Souha Sugiyado, a 17-year old ninja instructor and former ninja prodigy who was forced to retire from active duty by the wounds he suffered in his last mission. Souha's four students are all kunoichi who have all gained the rank of Elite Ninja, the highest official rank available to ninja. However, one day two Shogunate ninja approach him with the news that his four students have gone rogue and have stolen a portable modular nuclear reactor, and thus they ask for his help in bringing his students to justice.

In the world of Norse mythology, a human boy falls in love with Waltraute, the fourth Valkyrie sister. He wishes to marry her, but Waltraute gives him an impossible challenge to deter him.

Nevertheless, the boy is determined to carry out the dangerous task and to marry Waltraute afterwards.