A story about exchanging a second promise with my best friend's daughter who wants to reclaim me now that I have a boyfriend.

The existence of Miyazono Saya, my best friend whom I've been close to since long ago. We were always together, and I was certain that our relationship would continue as best friends in harmony. Then one day, I got a trial boyfriend. While wanting to cherish my connection with him, whom I had shared interests with before, I told Saya about this. The anger of the girl, who had been dissatisfied with me beforehand, exploded, and the moment I entered her room, she suddenly kissed me. The cause of that dissatisfaction was a promise exchanged between Saya and me in the past, and she said I broke it by betraying that promise. There was a significant difference in how we interpreted the promise between her and me. In short, it's a story about a best friend girl trying to take back the main character girl, who became romantically involved with a man she was close to, even if it was just a trial relationship. A boyfriend and a man appear in the story, but they only appear briefly at the beginning. The main plot of this work is primarily focused on girls' love elements, as the heroine girl plans and acts to reclaim the protagonist girl, so please be aware of this. This work is also posted on "Kakuyomu" and "pixiv."