The Secret Countdown in the Desk

When I opened the Chinese books in morning reading class, there was a pink diary with a bear on it. The girl's little thoughts are hidden in the diary, as well as a blue box buried under the camphor tree. I dug through the dirt and found the box. The photos and notes inside made me discover the unknown secrets on campus. And when the boy named Aze appeared behind me, I realized that this was just the beginning...