I can't stop this loop no matter how many times I try it!

Toshio, a virgin man with extreme agoraphobia, is given a mysterious pocket watch by a master of time manipulation pornography that rewinds time the more he turns its dragon head. He tries to succeed in his mad dash against Minami, the woman of his dreams, through endless trial and error using the watch's power, but Minami has a secret that she will never reveal to others....