Riho, a popular doujin cosplayer, is incredibly popular due to the striking contrast between her youthful face and her bountiful, beautiful breasts. However, she generally avoids anything sexual, so her fans continue to take photos of her in frustration. One day, while she was taking photos at a private photoshoot as usual, some overzealous fans slipped her an aphrodisiac without her realizing it. Apparently, that aphrodisiac was used for AV filming...