Ayakashi Triangle, sometimes abbreviated as AyaTri, is a 2020-to-2023 Japanese manga series written and illustrated by Yabuki Kentarou. It has been serialized by publisher Shueisha since June 2020, changing from Weekly Shōnen Jump magazine to Shōnen Jump+ in April 2022.
The series focuses on exorcist ninja Kazamaki Matsuri, as he tries to defend his childhood friend, the Ayakashi Medium Kanade Suzu, from evil spirits called ayakashi. However, during a battle to save Suzu's life, Matsuri is turned into a girl after being cursed by Shirogane, the King of Ayakashi. With Suzu's help, Matsuri must adjust to his new feminine form as they deal with both the friendly and the malicious ayakashi they encounter, as well as their growing feelings for each other, all while trying to break Matsuri's curse for him to return to his original form.