"I Love You" on April 1st

"From now on, I'm going to tell you just one lie." The girl in front of me—Hiyoshi Shirona—suddenly said that to me, Renbutsu Sei. However, after she said just one thing to me—"I love you"—she stopped saying anything else. This is a story about a day when it's okay to tell such a lie. ※By the way, the characters in this story are the same ones I wrote about during White Day. I've tried to write it so you can understand it even if you haven't read that one.