The ultimate collaboration between national idol "Haruna Osaka" and school cosplay! Includes 5 costumes that are indispensable for school stories: blazer, sailor uniform, school swimsuit, gym clothes, and cardigan! A beautiful idol girl climaxes gracefully in the classroom, changing room, health room, and even on the playground! A very naughty school spring story with a national idol! I'm so lucky to be able to feel this good!