Nakashima's 32nd single, "Ichiban Kirei na Watashi wo" (The Most Beautiful Me; 一番綺麗な私を) appeared on August 25, 2010, as the tie-in song to the TBS drama series, "Unubore Deka" (Conceited Detective, うぬぼれ刑事). The drama focused on a story about a male detective that has the illusion of being the "ladies man". He is a romantic but conceited, he tries to convince female criminals, into either marrying him or being arrested. Mika Nakashima plays a role in the show as well. The name of her character in the television series is known as Rie Hagurashi.