System, If You Don't Come Here I'm Going to Burp

Introduction: "Academic Master + System + Single Female Protagonist" is a cool and comfortable story. Due to an accident, I traveled back to the third grade of junior high school. With memories and regrets, as a bookworm who spent 5,000 hours on Tomatoes, I traveled back in time. How could I not have a system... … "Ding! The Shuangwaiwai system has been activated. Is it bound to the host?" "Fuck, bind... Bind..." An Yi screamed! "Binding... Binding... Binding..." "(-_-|||)…"