The Oneechanburu: The Oneechan Tokubetsuhen Cheats - PlayStation 2
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Unlock Saki Costume 3
You must complete all quests.
Unlock Aya Old Costume 1
During story mode, finish 5 quest.
Unlock Aya old costume 2
During story mode, finish 6 quest.
Unlock Saki2
Go to story mode and complete 3 quest.