Akira Tachibana, a reserved high school student and former track runner, has not been able to race the same as she used to since she experienced a severe foot injury. And although she is regarded as attractive by her classmates, she is not interested in the boys around school.
While working part-time at the Garden Cafe, Akira begins to develop feelings for the manager—a 45-year-old man named Masami Kondou—despite the large age gap. Kondou shows genuine concern and kindness toward the customers of his restaurant, which, while viewed by others as soft or weak, draws Akira to him. Spending time together at the restaurant, they grow closer, which only strengthens her feelings. Weighed down by these uncertain emotions, Akira finally resolves to confess, but what will be the result?
To the outside world, Hanabi Yasuraoka and Mugi Awaya are the perfect couple. But in reality, they just share the same secret pain: they are both in love with other people they cannot be with.
Hanabi has loved her childhood friend and neighbor Narumi Kanai for as long as she can remember, so she is elated to discover that he is her new homeroom teacher. However, Narumi is soon noticed by the music teacher, Akane Minagawa, and a relationship begins to blossom between them, much to Hanabi’s dismay.
Mugi was tutored by Akane in middle school, and has been in love with her since then. Through a chance meeting in the hallway, he encounters Hanabi. As these two lonely souls spend more time together, they decide to use each other as a substitute for the one they truly love, sharing physical intimacy with one another in order to stave off their loneliness.
Poor Shinichirou Asano has the worst of luck. His parents abandoned him and ran off to Europe. If that isn’t bad enough on its own, they barely left him any money to take care of himself. In order to pay rent and keep a roof over his head, he has to work. Unfortunately, he was just fired from his last job and as a high school student, he doesn’t have many other prospects.
One evening, he’s attacked by a centipede monster on his way home. Shinichirou is saved by a mysterious girl with a bow and arrow, who he later discovers is Sakuya Shimazu, a beautiful student who attends his school. But when he later helps an injured girl, he discovers two things. First, the injured girl isn’t human at all but rather a nekomata, a two-tailed demon cat. And second, Sakuya comes from a family of exorcists, who’ve protected humanity from rogue monsters and spirits for generations. Because Shinichirou was responsible for releasing the nekomata, Sakuya enlists his help in recapturing the demon, but that’s just the beginning of Shinichirou’s relationship with Sakuya. It turns out the Shimazu family needs a housekeeper and it just so happens that Shinichirou excels at cooking and likes to clean! It may not be his dream job, but if it pays the rent and puts food on the table…
During the summer of her freshman year of high school, Yuzu Aihara’s mother remarried, forcing her to transfer to a new school. To a fashionable socialite like Yuzu, this inconvenient event is just another opportunity to make new friends, fall in love, and finally experience a first kiss. Unfortunately, Yuzu’s dreams and style do not conform with her new ultrastrict, all-girls school, filled with obedient shut-ins and overachieving grade-skippers. Her gaudy appearance manages to grab the attention of Mei Aihara, the beautiful and imposing student council president, who immediately proceeds to sensually caress Yuzu’s body in an effort to confiscate her cellphone.
Thoroughly exhausted from her first day, Yuzu arrives home and discovers a shocking truth—Mei is actually her new step-sister! Though Yuzu initially tries to be friendly with her, Mei’s cold shoulder routine forces Yuzu to begin teasing her. But before Yuzu can finish her sentence, Mei forces her to the ground and kisses her, with Yuzu desperately trying to break free. Once done, Mei storms out of the room, leaving Yuzu to ponder the true nature of her first kiss, and the secrets behind the tortured expression in the eyes of her new sister.
Tsutsui Hikari is an otaku, and he mostly avoids social life. Hikari has only one friend at school, who is also a social misfit, and he is mocked brutally by most of his classmates for being creepy and weird. One day, he ends up having to clean the school pool with Igarashi Iroha, who appears to be pretty much everything he hates in real-life girls. She skips school, has a blunt manner, doesn’t have female friends, and seems the sort to be promiscuous. However, she is friendly to Hikari, and even stands up to the people who make fun of him. Hikari’s bitterness and trust issues lead him to say pretty harsh things to Iroha, but she never dismisses him as creepy. After a while, it starts to look like Iroha may become his first real-life, 3D girlfriend! Will he be able to handle it?
One year ago, Sagiri Izumi became step-siblings with Masamune Izumi. But the sudden death of their parents tears their new family apart, resulting in Sagiri becoming a shut-in which cut her off from her brother and society.
While caring for what’s left of his family, Masamune earns a living as a published light novel author with one small problem: he’s never actually met his acclaimed illustrator, Eromanga-sensei, infamous for drawing the most lewd erotica. Through an embarrassing chain of events, he learns that his very own little sister was his partner the whole time!
As new characters and challenges appear, Masamune and Sagiri must now face the light novel industry together. Eromanga-Sensei follows the development of their relationship and their struggle to become successful; and as Sagiri slowly grows out of her shell, just how long will she be able to hide her true persona from the rest of the world?