A certain adult manga publishing company. We will unearth an incredible "breast treasure" here. Her name is Urara Saki (26). She carries a heavy cardboard box. She takes books from a high place. She works diligently at her desk. She's just working. And yet, a truly overwhelming K-cup with a strong presence. That's not all. She had a secret, but super perverted ambition. "I want to have sex like a doujin manga where I get wet." Today, that will come true. With tremendous breasts and plenty of expectations under her serious work clothes. She makes up her mind and makes her AV debut.