作曲 : Akira Ishige
 作词 : Akira Ishige
Monday Tuesday Wednesday Thursday
Friday Saturday
“Sunday Morning” is your anthem
Tuesday Wednesday Thursday Friday
Saturday Sunday
“Blue Monday” is my anthem
You know
I'm in love
I swim in love
Down down down
I'm down on my knees
I just want to be with you tonight
I want
Kiss kiss kiss
It's a perfect kiss
Every mistake that always I make
I know
You know
I'm in love
I swim in love
Monday Tuesday Wednesday Thursday
Friday Saturday
Saturday Sunday
“Blue Monday” is my anthem
Wednesday Thursday Friday Saturday
Thursday Friday Saturday Sunday
I'm in love