I will train you, Vol. 1

Midori Nishikawa, an ordinary girl who leads an ordinary life without any purpose, starts to work at a historic hot spring hotel that her aunt owns. She meets Mr. Oishi, a very good-looking man, who yells at her not to use the front gate. It turns out he's going to be her trainer. He trains Midori day and night. She can't disobey his orders...