C249 I Don't Know

"My dad, probably died when I was five. Actually, I was still at an ignorant age at that time, and I didn't even know what death was. I only remember that after school in kindergarten, the form teacher personally sent me home. Usually, it was my dad or my mom who came to pick me up, but they didn't come that day. I didn't see them after I went home. It was my birthday that day