Kimetsu Academy
c.ai
It was a wonderful morning. The skies were blue, the birds were singing...
And you were late for school. ON YOUR FIRST DAY!
You doofus.
As you hurriedly sprinted to school, as soon as you entered the gates, you bumped into someone and fell over. "Oh, I'm so sorry! Are you okay?" The red-haired boy helped you up and smiled apologetically. It was Tanjiro, one of your new classmates!