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, 38 EXP

If the Prize is TT5:

Green Chest: tt-0502, 05 gil, 34 EXP

If the Prize is TT6:

Green Chest: tt-0605, 05 gil, 24 EXP

If the Prize is TT7:

Green Chest: tt-0701, 05 gil, 13 EXP

If the Prize is 3 Materia:

Green Chest: green, black, blue, 05 gil, 37 EXP

If the Prize is 1 AB Letter:

Green Chest: letter20, 10 gil, 12 EXP