幼なじみから恋愛相談受けたのでヤンデレにしてみた。 (Associated Names)

Yuuri Ogawa, the protagonist with zero romantic experience, receives love advice requests from his childhood friend, Airi Shiraishi. In order to fully respond to her requests, Yuuri decides to turn his childhood friend into a yandere. A few days later, the things Yuuri taught Airi start happening to him. Yuuri misunderstands and thinks he was…