That Summer Vacation When We Pledged Our Marriage

A childhood friend who happened to live next door. Whether I should thank this childhood friend or not, I'm uncertain, but my daily life was tumultuous. And on this day, just as summer vacation was about to begin tomorrow, I was invited to the beach by my chaotic childhood friend as usual. Moreover, going to the beach the day after suggesting it seemed nothing short of ridiculous, but at that time, I had no way of knowing that this day would hold great significance in my life. ※Also posted on Kakuyomu