Yamada-kun to nana-nin no Majo
Miki Yoshikawa wrote and illustrated the manga series Yamada-kun and the Seven Witches (Japanese: 山田くんと7人の魔女, Hepburn: Yamada-kun to Nananin no Majo). From February 2012 to February 2017, it was serialized in Kodansha's Shonen manga magazine, Weekly Shonen Magazine, with chapters collected in 28 tankobon volumes.
Ryuu Yamada, a junior at Suzaku High, is known for being a hardliner and a delinquent in this gender-bender manga. He notices Urara Shiraishi, the grade's top student, one day after being reprimanded for his poor performance and attitude toward school. Yamada attempts to provoke Shiraishi as she walks up the stairs, only to trip and fall, taking her with him. He eventually awakens in the infirmary. He discovers, much to his surprise, that he is not in his own body.
He swapped bodies with Shiraishi, and upon confronting her, he discovers that the catalyst for the swap was an unintentional kiss during the fall. Yamada's eventful high school years were transformed by the discovery of this new ability.
Author: Miki Yoshikawa
Original run: February 22, 2012 – February 22, 2017
Volumes: 28
Status: Completed
Buy here: https://www.amazon.com/Yamada-kun-Seven-Witches-Miki-Yoshikawa/dp/1632360683