Yamada-kun and the Seven Witches is a finished manga series written and illustrated by Miki Yoshikawa. The series has been published by Kodansha in their Weekly Shonen Magazine since February 22, 2012 to February 22, 2017. The series has been licensed in Chinese by the Taiwanese publishing company Tong Li. On October 26, 2013, Crunchyroll announced a partnership with Kodansha where it would distribute chapters digitally to 170 countries. The series has been licensed for North American release by Kodansha USA, who began releasing the series in 2015. The series concluded in February 2017 with 28 compiled volumes. It concluded on February 22, 2017 after running for exactly 5 years.
Ryū Yamada is known as a delinquent in his high school; he has been bored of classes after one year of attending school. One day, he accidentally falls from a flight of stairs onto Urara Shiraishi, the ace student of the school. Yamada wakes up to find that he has swapped bodies with her. The two try to reverse the change and discover that kissing triggers the body swap. On the suggestion of student council vice-president Toranosuke Miyamura, they revive the Supernatural Studies club. The supernatural-phenomenon-obsessed Miyabi Itō soon joins the club. The club encounters other “witches” with different powers that are activated with a kiss. A transfer student, Kentarō Tsubaki, becomes a part of the club after nearly causing a fire to the old schoolhouse. Upon discovering the identity of the seventh witch, Yamada supposedly has his memories of the witches erased, but it instead affects the witches and the students involved. While the student council tries to impede his progress, Yamada restores the memories of the witches with a kiss, and gathers the seven witches for a ceremony where he wishes for the powers to go away. He confesses his love to Urara and they become a couple.
He is recruited to the new student council where he learns that he still has his witch copying power, but that there are more witches. Although the student council tries to shield each other from the powers while discovering and allying with the witches, they find themselves facing opposition from students controlled by the Japanese chess club, which has male students with new kinds of witch powers. The student council receives a vote of no confidence and must face a recall election. In the process of infiltrating the Japanese chess club, Yamada learns of a witch who was connected to his past. He works a deal with childhood friend-turned-rival Ushio Igarashi where he wishes for his memories to return; in exchange, Ushio would take seventh witch Nancy’s ability. When the Japanese chess club continues to manipulate the campaign, Yamada uses his copied seventh witch power to erase the recent events, but Ushio beats him to the punch and they are both forgotten by the students.
Yamada returns to the Supernatural Studies club as the school has to deal with new witches following the new school year. He also learns there are gaps in his and his schoolmates’ memories of what happened at the end of his first school year, including those of whom he was dating at the time. Yamada then tries to find out the truth of what happened. He ultimately gathers the male witches to hold a ceremony to restore everyone’s memories. As he goes through his senior year of high school, he plans to apply to a prestigious university. However, when Urara suddenly disappears from his life along with the witches powers and everyone else’s memories of her, Yamada discovers she was the original witch. Urara had agreed to the witch powers in order to have a relationship with Yamada, but on the condition that her memories of him to be erased again when she leaves school. However, when she returns at graduation, Yamada finds a way to get her to remember again.
Ten years later, Yamada has become a successful businessman and adult who is looked up to by his coworkers and keeps in touch with his high school friends, but has yet to propose to Urara. The two get married and some years later, share their story with their two children.