Doctor Player - Chapter 74

The Soaring Dragon Continent is a world of summons, you can only become strong if you become a summoner! Yue Yang, an average high school boy, was suddenly transported into this world. When he woke up, he was greeted with a lot of worried faces and found out that he had assumed another person’s identity. Turns out he’s the good-for-nothing third son of the Yue Family, who had just recently drowned himself because of a failed engagement. Unlike the third son of the Yue Family who was useless in summoning, Yue Yang succeeded in making a contract with a summoning grimoire on his first try, even when the other guy failed for the past fifteen years. Others would have a headache making contracts with beasts afterwards, but countless beasts tried to gain favour with Yue Yang instead, acting like a good kid before him.

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.

One day, Luo Jian woke up from his sleep and found himself in a locked chamber where the door and window were all sealed. A note with a few lines written on it was tacked to the wall: “Escape from this room within an hour, otherwise, you will die.”

There is a sequel called Reincarnation Night (轮回之夜) that takes place in the same universe but has different main characters

- Description from Novelupdates

Alpha Kane is notorious in the werewolf world—a ruthless leader whose enemies tremble at his approach. Known as the “Ladykiller,” he has left a trail of satisfied women, all yearning for a taste of his intense passion. With a reputation for electrifying encounters, he reigns supreme in the realm of desire, leaving a legacy of pleasure in his wake.At 28, Kane has resigned himself to a life of dominance and pleasure, convinced he will never find his mate. That is until fate introduces him to Elena, a captivating and naive young woman whose purity stands in stark contrast to his dark desires. When their paths cross, he is struck by the intensity of their connection but is equally horrified by the idea of tainting her innocence with his brutal needs.Kane grapples with a tumultuous dilemma: Should he protect her from the dark passions that define him, or will she ignite a fire within him that challenges his very identity? As he struggles to reconcile his predatory instincts with the tender bond forming between them, the stakes rise. Can he tame his ruthless nature to embrace the love he never expected? Or will his fears drive them apart, leaving them both unfulfilled?As desire collides with innocence, Elena must decide: will she surrender to the alpha’s intoxicating allure and explore the depths of her own passions, or will she find the strength to confront his demons and demand the love she deserves?In this gripping tale of power, submission, and redemption, witness a love story where dark desires collide with the purity of the heart, challenging the boundaries of pleasure and passion. Will Kane become the prince charming he never thought he could be, or will he forever remain a prisoner of his own dark legacy?