The linking theme of the four episodes of "Sotsu Uta" (Graduation Song; Fuji TV, Mon-Thurs, 11 p.m.) is a radio show hosted by DJ Hitomi (Masami Nagisa), who plays songs popularly associated with graduation.
On Monday night's drama, based on Kiroro's "Best Friend," high school student Ayumi is always in love, and so tends to take her best friend for granted and not notice her undying devotion.
Exile's "Michi" ("Road") is the theme song for Tuesday's drama, in which a young woman brings her fiance home to meet her father. He approves of the young man and gives his blessing, but tells his daughter he won't attend the wedding.