A lonely, chain-smoking office lady in Tokyo falls for her teacher when she decides to take English lessons. When her teacher disappears, she sets out on a journey to find him.

Setsuko, a 55-year-old single 'office lady' in Tokyo, is given a blonde wig and a new identity, 'Lucy,' by her young unconventional English instructor. 'Lucy' awakens desires Setsuko never knew she had. When the instructor suddenly disappears, Setsuko must come to terms with what remains--herself.

Lucky Seven Rakkīsebun is a 2012 Japanese television drama broadcast by Fuji Television from January 16 to March 19, 2012. It stars Jun Matsumoto and Eita.