bad song idea

the chord progression is ii7-V7 but the V7 chord becomes the new key so like starting from C major it would go like 

Key: C major

D-7 (ii) Gmaj7 (technically I7 but its V7 in C major)

Key: G major

A-7 Dmaj7

Key: D major

E-7 Amaj7

Key: A major

B-7 Emaj7

and it just goes on until you get back to C major