It served as the opening theme to the CX music show Ureshi Tanoshi Daisuki - Friday Night Live, on which the band were regular cast members.

[2] The lyrics to "Kessen wa Kinyōbi" were written by Miwa Yoshida and the song was composed and arranged by Masato Nakamura, while the track was co-produced by the band and Mike Pela.

"Kessen wa Kinyōbi" came about when Nakamura and Sing Like Talking frontman Chikuzen Satō decided to challenge themselves to a friendly competition to see who could write the best song using the chord progression to Cheryl Lynn's "Got to Be Real" as base inspiration.

[6] In 2014, HY recorded a cover of the song for the Dreams Come True tribute album, Watashi no Dorikamu, released in celebration of the band's 25th anniversary.

It charted in the top 100 for twenty-three weeks, selling a reported total of 1,070,420 copies,[13] making it Dreams Come True's first million-selling single.