HET-233 - The story of picking up a runaway high school girl, is this real?

First time watching a film by director Gunji Kawasaki. He makes some pretty eccentric (?) stuff. I thought it would be like Glory Quest’s popular 'Forbidden Nursing' series, but… The encounters were: (1) High school girl (Ami Mochizuki) and her boyfriend (Miyazaki). (2) Daughter (Miki Shiraishi) and her husband (name unknown). (3) The main (?) interaction: an old man and a high school girl. Masayoshi Nogami plays the old man really well. If only Ami Mochizuki were a bit cuter…. I want to watch more of Kawasaki's work now.