After realizing that she was tricked by Yuri, Masako reminisces about her grandfather, a powerful business tycoon who expelled her father claiming that he was not strong enough to be allowed a place in the Natsume family. After dreaming countless times about having him killed, Masako rejoiced when her grandfather inadvertedly poisoned himself to death by eating ill prepared Fugu. Masako since then assumed control of her family's corporation but was sad that her father had never returned home, until somehow her grandfather's spirit posessed Mario's body and forced her to eat the same poison that killed him to protect her brother, but Sanetoshi appears to save her life. Later, Masako sees Kanba hanging out with the same elusive men who took her father away and Sanetoshi asks Masako to join them in his plan to "put the world back on track" but she promptly refuses.
Masako rimette insieme le due metà del diario e scopre che la parte rubata a Yuri non è altro che uno scherzo. Viene narrata la storia di lei e Mario bambini: i due vivevano con il nonno paterno da quando il padre li ha lasciati.
温泉旅館の仲居に扮し、ゆりから「日記」の半分を奪うことに成功した真砂子。しかしそれは、ゆりがワザと掴ませたダミーだった。真砂子が次の一手を考える中、夏芽家に使える執事・連雀は、真砂子の信頼にこたえるため、今日も監視と称して冠葉と陽毬の隠し撮りに励んでいた。ところがペンギン帽をかぶった陽毬に見つかってしまったことから、連雀も生存戦略を告げられ――。
