狠狠撸shows by User: kentomasui31 / http://www.slideshare.net/images/logo.gif 狠狠撸shows by User: kentomasui31 / 狠狠撸Share feed for 狠狠撸shows by User: kentomasui31 https://public.slidesharecdn.com/v2/images/profile-picture.png 庆应义塾大学理工学部、増井建斗です。