Some 20 years have passed since the protagonist was summoned to another world and retired from the army. He is still single in his 40s and lives as a low-ranking professor, until one day, an elite 'monster girl' becomes his student.
Seto is an ordinary and uninteresting high school student who is frequently harassed by his classmate Anjou, a troublemaker whose motives are unknown. Despite their contrasting personalities, with Seto being more reserved and Anjou being more lively, Anjou enjoys taunting and tormenting Seto. Seto struggles to cope with Anjou's behavior and fails to realize that his entertaining reactions are why she enjoys tormenting him. Yancha Gal no Anjou-san chronicles the amusing daily interactions between these two polar opposites as their playful teasing evolves into a cherished companionship. However, it remains unclear whether Anjou's flirtatious banter with Seto is genuine or not.
To say that Mona Kawai is cute would be an understatement; she is breathtaking in every single way, and she knows it. At school, she is fawned over by boys and girls alike, and she graciously welcomes it all as a natural reaction to her irresistible charm. That is, until she comes across Medaka Kuroiwa, the boy who is seemingly immune to her overwhelming charisma. She goes out of her way to talk to him and even dials her cuteness up a notch, but no matter what she tries, Mona cannot wipe the scowl off Kuroiwa's face. Backed into a corner, Mona is forced to use the most devastating weapon in her arsenal: her physical allure. Such drastic measures would leave other boys foaming at their mouths, but Kuroiwa remains unfazed by her attempts. Little does Mona know that the only reason Kuroiwa just barely abstains from succumbing to her charms is because he is training to be a monk and thus trying his best not to be held down by worldly pleasures. As Mona goes all out to entice Kuroiwa, she fails to realize that his unintentional chivalry might just make her fall for him instead.
Fourteen-year-old Iruma Suzuki has the worst luck possible! Incapable of saying no to anyone, he has always performed whatever life-threatening jobs his greedy and lazy parents requested. His life takes an unexpected turn when they form a contract with Sullivan, a high-ranking demon, at the cost of his soul. Afraid and confused, Iruma is surprised that all Sullivan wants is to act as his grandfather. Sullivan takes care of Iruma and decides to enroll him in the demon school Babyls. Iruma's greatest challenge is hiding his status as a human, so keeping a low profile among his peers is the only option. However, Iruma will soon discover that he is no ordinary human, and the demons might also be more than what meets the eye.
Living alone, high school student Hitoyoshi Yokoya is approached by a stranger who offers to be his maid, with one caveat; she's a former assassin. Hitoyoshi is understandably unnerved, but after she saves him from a truck, her combat know-how impresses him enough to give her a chance. However, it quickly becomes clear that Yuki, as he christens her, has no home-making skills, only expertise in assassination, which she has honed for years. Spending more time together, Yuki begins to develop new emotions, and desires a life free from violence. Renaming herself, she begins a new life thanks to her new family with Hitoyoshi, leaving behind her haunted past.
Sakura Adachi and Hougetsu Shimamura both ditched class for their own reasons, but fate brought them together on the second floor of the school gymnasium. This unexpected meeting sparked a lively friendship that was free of rigid formalities and overwhelming expectations. Sharing in the ups and downs of life together, they gradually grew closer, but their unfettered emotions created confusion about the true nature of their relationship. As they approached the end of their dull adolescence, Adachi and Shimamura explored the genuine and complex emotions they shared. Through this exploration, they discovered vibrant colors that brightened their once uninspired future.
All my life I've always played a supporting role, and I thought that's where I'll always be…
Ao Kirishima encounters a collapsed woman on the street. Having learned CPR from his father, Ao rushes to her aid and does everything he can to help. Thanks to his actions, the woman survives—and her daughters turn out to be the strikingly beautiful twin sisters in his class, Yuzuki Kotobuki and Hikari Kotobuki. To express their gratitude, Yuzuki and Hikari begin searching for Ao. “I’ll definitely make you fall for me.” “I’ll make sure you come to like me.”
Kuonji is a perfectly healthy high school boy, but his heart is held captive by one thing: the thighs of the girl sitting right next to him! Following a chance accident, he finally makes contact with the girl who was supposed to be way out of his league. Now, Kuonji's dull everyday life is about to take a massive turn...!!?
Akiyoshi Tooru, a studious youngster with spectacles, battles with deep-rooted insecurities caused by previous comments that dubbed him as "cute" and "attractive" in his childhood days. Nevertheless, fate takes a twist when the charming Naruse Fuuta professes his fondness for Akiyoshi, a male peer. Dejectedly, Akiyoshi declines Naruse's proposal, which incites a transformation in Naruse's demeanor as he ferociously assails Akiyoshi. Will Akiyoshi manage to dodge Naruse's precarious and unpredictable behavior?