Rikkai's Daily Livestream

My name is Kuwahara Jackal, and I'm a tool. One day, after training, I crawled back to the clubroom, and a livestreaming System fell from the sky. I became the lucky one chosen by it. Think I'm going to rise to the top, become a famous streamer, and set off a storm at school? No, you're wrong. All I do every day is train and go to class, so the number of viewers in my livestream has stayed in the single digits. Then one day, my captain, my teammates, and my friends appeared on camera. From then on, my happy life as a couch potato came to an end, and I was promoted to the livestream's tool. Theme: Everyone in this world is indispensable.