On the surface, high school student Koyuki Koyun Hikawa seems unapproachable and terrifying to most other students. In reality, Koyun is just insecure and prone to overthinking due to her uncomfortable experiences in middle school. However, her chance encounter with two boys in school—Minato Amamiya and Youta Hino—sparks a change in her. Like her friend Miki Azumi, the boys are never afraid to approach Koyun and see her for who she really is. Although Koyun starts spending more time with Miki, Minato, and Youta, she finds herself torn between her newfound bliss and her fear of getting too attached to others. Meanwhile, each of her friends quietly struggles with their own challenges. But as the new friend group continues to navigate high school together, Koyun and the others start to break out of their shells and enjoy their adolescence to the fullest.

As seasons have passed, Mizuho Nishino's adolescence has been full of ups and downs. With Christmas approaching, she intends to celebrate the special event with all of her four childhood friends: Kizuki Hazawa, Shin Kashiwagi, Airu Izumi, and Shuugo Hoshikawa. However, Kizuki makes the first move when he declares that he wants to spend the time alone with Mizuho. Although hesitant at first, Mizuho ends up confiding in him and declares Kizuki to be her boyfriend! The news about Mizuho and Kizuki spreads quickly and brings forth Shin and Airu, who have had a difficult time accepting their feelings for the one they love. With the friend group faced with a delicate situation they have never confronted before, only time will tell if the new romance and old friendships can survive.

The princess of the Royal Empire remains imprisoned in the Hellhorde dungeons, constantly enduring their insidious methods of inhumane interrogation—lavish meals, heartwarming companionship, and comforts too delightful to resist. As new rounds of unbearable torture continue to make her days in confinement better, every pleasant experience threatens to loosen her resolve and give the demons exactly what they want—no matter how useless the information she reveals may be.

For as long as the locals can remember, the Champignon Witch, Luna, has lived hidden in her cottage on the outskirts of the kingdom, deep within the Black Forest. Despite her occasional trips into town to deliver medicine, no one dares to come close to her as poisonous mushrooms grow everywhere she goes. Furthermore, as a black witch, Luna must lay low to avoid execution, as the kingdom only acknowledges and accepts white witches. Luna's lonely life turns around when she saves a dying boy named Lize. Upon learning that Lize is destined to become The End of All Things, Luna offers to become his teacher and stray him away from the path of evil. She must overcome her inexperience and create a great magician out of Lize to avoid his execution.