KIR-033 Tsubasa Hachino tried a naughty prank on a big-breasted older sister who works at an electronics shop.

My name is Tsubasa and I run an electrician shop! - There were times when I was training hard, with tears rolling down my cheeks. - However, I became independent and started my family's electrician business. - If something can be fixed, fix it and use it. - This is my motto. - Today I'm going to Mr. Hashimoto's house, a rich and important customer, to do some repairs!