Aina, a beautiful big-breasted office lady working as a sales representative at a medical equipment company, is struggling to make ends meet on her salary alone. To afford her golfing hobby, she secretly seeks financial sponsors during her lunch breaks. Three years into her job, Aina enjoys both money and sexual pleasure, stripping down in her office suit to reveal her voluptuous body, teasing out her partner's cock with dirty talk, and eagerly accepting creampie after being brought to multiple orgasms with sex toys. What makes her irresistible is her willingness to pursue ultimate pleasure—no matter how much extra it costs.