Office worker Sumire Shinonome's unquenchable lust has caused her to give on dating completely. Now she spends her days getting herself off to the delivery guy who's just her type. She simply can't help but dream of their naughty escapades, but a turn of fate brings them intimately together! She can feel herself melting from his hot kiss and her tongue on his monster down below. As his love fills her up deep inside, she can't help but hold him tight. Sumire hopes that this physical relationship of theirs will continue forever, but what's this?! He's turned up at her office as her new trainee?! Whatever will have to the two of them now...?