淑女の鑑やめました。時を逆行した公爵令嬢は、わがままな妹に振り回されないよう性格悪く生き延びます！(SHUKUJO NO KAGAMI YAMEMASHITA. TOKI WO GYAKKOU SHITA KOUSHAKU REIJOU WA,WAGAMAMA NA IMOUTO NI FURIMAWASARENAI YOU SEIKAKU WARUKU IKINOBIMASU! Raw)I stopped looking at ladies. A duke’s daughter who has traveled backwards in time uses her bad personality to survive in order to avoid being swayed by her selfish girlfriend’s younger sister!