During the summer vacation, healthy girls going to the pool. Such girls are targeted by R, a resident of Chiba Prefecture, who posts videos of lewd acts. He lures girls into secluded public restrooms in parks, plays pranks on them, or locks them in after confirming they entered alone and then molests them. He places a 'cleaning in progress' sign at the entrance to keep others out and slowly enjoys the girls. There are 4 victims (only sunburned little girls)
