Reiko Kobayakawa, the beautiful proprietress of the small restaurant "Hana no Ka," has been protecting the shop left behind by her late parents. But when a vulgar customer drags her into a complaint, claiming the beer has gone bad, she's forced to urinate in front of him to prove her point. This single act triggers a series of escalating incidents. A humorous yet shocking piss-drinking drama unfolds as the elegant milf's distressed expressions meet unexpected twists. A minor everyday incident turns her life completely upside down.