HUNTC-266: 地味子なのに初めてのセックスで経験人数が一気に5人！クラスの地味子が誘われた初めての乱交パーティー。ヤリマン女子が当然の様にセックスをする中

- Even though she is a sober child, the number of experienced people at once is 5 people at once in her first sex! - The first party to which the sober child of the class was invited. While girls have sex as a matter of course