During her high school days, Nana Komatsu spent her time chasing crush after crush, never losing her hope despite repeated failures. At 20, she boarded a train to Tokyo in hopes of reuniting with her boyfriend. Nana Osaki, on the other hand, was a fiery and proud high schooler who joined a local band and fell in love with music and one of her bandmates. When forced to choose between her musical aspirations and her relationship, she chose her passion and parted ways with her boyfriend. On her 20th birthday, she too boarded the train to Tokyo to become a renowned vocalist.