Refresh for each green chest and take appropriate reward:

If Enemy shows up, he takes away:

If Rival shows up, he takes away:

If They both show up, use Rival!

If the Prize is TT4:

Green Chest: tt-0410, 05 gil, 23 EXP

If the Prize is TT5:

Green Chest: tt-0509, 10 gil, 34 EXP

If the Prize is TT6:

Green Chest: tt-0608, 20 gil, 23 EXP

If the Prize is TT7:

Green Chest: tt-0701, 05 gil, 32 EXP

If the Prize is 3 Materia:

Green Chest: white, red, white, 05 gil, 30 EXP

If the Prize is 1 AB Letter:

Green Chest: letter17, 10 gil, 20 EXP