The groups! They obviously start in the lockers!

♡Group 1♡
Miokio & Rie!

♡Group 2♡
Kari & Christy!

♡Group 3♡
Mizumi & Tesutesu!

♡Group 4♡
Gumi & Hisae!

♡Group 5♡
Akita & Nakidori!

♡Group 6♡
Sheep & Nicolas!

♡Group 7♡
Alex & Iris!

♡Group 8♡
Makiko & Fumiko!

Those are the groups!