センパイ！すきなんです！

"I've liked you for a long time now! Please, go out with me!"

This kind of confession happens only once in a lifetime. I mustered the courage to reveal my feelings, but I was shot down right away.

"April Fools' Day or not, you can't joke about things like that."

Did I not get through to him?! What am I going to do now?!