My fiance, who said that he had no experience in sex industry, is so incredibly skilled that I get skeptical of doubt.

Non is the fiance of Yu, the eldest son of a Japanese confectionery shop that has been in business for 100 years. To marry a venerable family, you must be recognized by a strict father. Non, who is beautiful, brave and pure, is truly her ideal wife... In fact, she had a different face called Rino-chan, the legendary sex worker who has been the No. 1 in three years in a row. This must never be revealed. He shows his sense of chastity, and does not let him have sex until he gets married, but instead teases him... However, Norino-chan, who is the strongest in terms of both popularity and ability, unconsciously shows off her "amazing techniques." Yu begins to doubt Non. And his father also asked a detective to investigate Non's background... What will happen? ?