Goshūshō-sama Ninomiya-kun's story revolves around Shungo Ninomiya, a male high school student trained in difficult hand-to-hand combat. He lives in a huge house with his older sister Ryōko, who is almost always gone on some dangerous mercenary mission. One day, his sister sends Mayu and Mikihiro Tsukimura, two siblings, to live with him to help Mayu overcome her fear of men. Unfortunately this is accomplished by making Mayu and Shungo share the same room, bathe together and even sleep together in the same bed. Making things even worse, Reika Hōjō, the student-council chair, is blackmailed into becoming their maid due to a video that Ryoko recorded, in which she tries to seduce Shungo
Myself ; Yourself is set in 2007 in the fictional town Sakuranomori (桜乃杜, Sakuranomori) in W Prefecture which is modeled after Wakayama Prefecture, Japan. The town is in a quiet, rural area on the southern tip of the prefecture and borders the Pacific Ocean. Sakuranomori is the birthplace of Sana Hidaka, a sixteen year old high school student, who grew up with his childhood friends Nanaka Yatsushiro, & Aoi Oribe, his best male friend Syusuke Wakatsuki, and his twin sister Syuri Wakatsuki. Sana left Sakuranomori when he was eleven years old, but returns five years later living on his own in the apartment building Aoi's family runs. Sana soon finds out that while some things have stayed the same, there are still just as many things that have changed.
Tsukune Aono is a painfully average high school freshman who is unable to get into any private school, due to his disappointing test scores. The only school he is finally accepted into turns out to be a secret school for supernatural monsters (yōkai), who are in disguise as humans. The first student he meets is the beautiful Moka Akashiya, who becomes his friend for an unusual reason; she is a vampire, and is attracted to the sweet taste of his human blood. Tsukune quickly realizes his admission into a monster school must have been a mistake and fears for his life. ect.
A childhood friend, Yuuji, is coming home after a 10-year absence and Kazuki is eager to meet him again, hoping that he has become a handsome, romantic boy. But it seems to her that he has become a lecherous teenager. In spite of her disappointment, she begins to realize that despite Yuuji's lewd (ecchi) ways, he values their long friendship. Kazuki's kind older sister, Hatsune, tries to help their relationship along. Meanwhile, Yuuji’s little sister, Marie, punishes his lustful outbursts by shooting him with a painful, but non-lethal, automatic air rifle.
Kanokon's story revolves around Kouta Oyamada, a young first-year high school student who moves from the country to the city and thus transfers to Kunpō High School. On his first day at his new school, he meets a beautiful second-year female student named Chizuru Minamoto. After the meeting, the storyline skips forwards by an unknown amount of time. During that time the two seem to have become good friends, and Chizuru Minamoto asks him to meet her alone in the music room. When he arrives, she tells him that she is in love with him and accidentally reveals to him that she is in fact a fox spirit. Chizuru constantly flirts with Kouta which embarrasses him greatly due to others watching. Soon after the story begins, a wolf deity named Nozomu Ezomori transfers into Kouta's school and class. From day one, she is all over Kouta which serves to embarrass him more and cause Chizuru to become annoyed at her new competition for Kouta's affection.