和泉正宗（松冈祯丞 配音）是一名专注于创作轻小说的作家，曾经获得过新人奖，并就此踏上了写作的道路。不久之前，正宗开始了和没有血缘关系的妹妹和泉纱雾（藤田茜 配音）一起的同居生活，哪知道虽然住在同一屋檐下，但正宗几乎没有在家里看到过纱雾，因为纱雾是一个只待在自己房间里绝对不会出来的超级宅女。 负责给正宗的小说画插图的是一位名叫“情色漫画老师”的插画家，其画技之精湛令正宗深深折服，然而，情色漫画老师未曾有过以其真身示人之时，对于他隐藏在网络背后的真实面目，正宗有着诸多的猜测。然而，让正宗没有想到的是，这位插画家的真身，竟然就是妹妹纱雾！
The eight toon "participants" are parodies of famous cartoon figures Spanky Ham is a downloaded internet cartoon as mentioned in a previous episode (Newgrounds.com). Captain Hero is like Superman (DC Comics). Ling-Ling is like Pikachu from Pokémon (Nintendo Games). Xandir is like Link from The Legend of Zelda (Nintendo Games). Princess Clara is like various heroines from animated feature films (Walt Disney). Toot Braunstein is like Betty Boop (Max Fleischer, Paramount). Foxxy Love is like Valerie Brown from Josie and the Pussycats (Hanna-Barbera). Wooldoor Sockbat is like SpongeBob SquarePants (Nickelodeon Network). Guest toon Bucky Bucks is a combination of Donald Trump and Richie Rich (Harvey Comics).
