This story is fiction. The characters are fictitious and have no relation to real people. Hiyori is a "sugar baby". Yua accompanies her on her sugar baby trips in an attempt to understand her... Why did Hiyori start sugar baby? As she watches Hiyori have sex with an older man she's never met before, Yua begins to feel like she understands how she feels... A fresh and vivid documentary drama about sugar baby life.