Jun Naruse is a chatterbox whose life is colored by fairy tales and happy endings. However, influenced by her deep belief in those tales, she is too naive and trusting, and her words soon shatter her family's bond when she inadvertently reveals her father's affair. Naruse is scarred for life after being blamed for her parent's divorce, and her regrets soon manifest into a fairy egg—a being who seals her mouth from speaking in order to protect everyone's happy ending. Now, even in high school, Naruse's speech remains locked by the fairy egg. Even trying to speak causes her stomach to twist. Though unable to convey her thoughts through words, she is unexpectedly chosen to perform in a musical alongside three other students: Takumi Sakagami, Natsuki Nitou, and Daiki Tasaki. Naruse makes her way to the club room to reject the daunting task, but changes her mind when she overhears Sakagami's beautiful singing. Perhaps the fairy egg curse does not apply to singing, and perhaps Sakagami is the fairy tale prince she has been seeking all along. Will Naruse be able to convey the anthem of her heart?

Having reached the pinnacle of human potential, Varvatos was so powerful that the rest of humankind began calling him the Demon Lord, both fearing and respecting his overwhelming influence. As a result, he felt alienated from his fellow humans, leading him to desire true companionship—an equal he could call a friend. Hoping his fate will change in his next life, Varvatos decides to start anew and reincarnates three thousand years later as Ard Meteor, the son of a seemingly ordinary couple in a rural town. Unfortunately, he realizes that even after weakening himself, his strength still overshadows everyone in this era. Moreover, his lack of social skills bars him from achieving his goal of making friends. But worst of all, the repercussions of suddenly abandoning his former position have begun to bite him back in some of the most unimaginable ways possible.

Itsuki Hashima is a light novelist obsessed with little sisters, strictly focusing on them when he writes his stories. Despite his personality, he is surrounded by a tight circle of friends: Nayuta Kani, a genius yet perverted novelist who is in love with him; Haruto Fuwa, a fellow male author whose work has seen considerable success; Miyako Shirakawa, a good friend that he met in college; and Chihiro, his perfect younger step-brother who takes care of the housework and cooking. Together, they play strange games, go on spontaneous journeys, crack silly jokes, and celebrate each other's successes. However, each individual must also deal with their own issues, whether it is struggling to meet a deadline or coming to terms with traumatic events buried in their past.

When they were little kids laughing and playing together, Izumi Norimoto and Kazusa Onodera were like siblings. But as their bodies matured into middle school, Kazusa began seeing him as something different; unfortunately for her, so did the other girls. Ostracized, Kazusa had no choice but to distance herself from him going into high school. After joining the literature club, however, she finds friends that keep her mind occupied. Known throughout the school for reading aloud sex scenes in literature novels, the club's reputation has kept all teachers from accepting the task of being their adviser. During a discussion about what they would put on their bucket list, one of the girls says one thing: sex. This single word sends ripples throughout the five girls, as the thought of sex begins taking over their daily lives. And, after walking in on Izumi during a very private moment, Kazusa is sent into a spiral of emotion that forces her to face her true feelings for him. Now, with their hearts racing and the literature club facing immediate disbandment, the five girls must work hard to keep both their sanities and their club alive.