One day, while Kogo was scavenging for food in a trash bin, he was discovered by a kindergarten teacher who temporarily took him in as an adopted child. Forced to serve as the female teacher's personal servant, he spent every night until morning endlessly licking her pussy, barely getting any time to sleep. From the moment she woke up until she left the house, he faithfully served her like a dog. Kogo repeatedly underwent training as a servant and dog, gradually improving his skills in servitude. However, the only food he was given consisted of what the teacher spat out of her mouth or her excrement. He was denied anything else, making his life extremely harsh... (Japanese subtitles, English subtitles)