You have to do the following in Story mode.
| Unlockable | How to Unlock
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|---|
| Asakura Saya | Find all the evidence.
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| Doi Junpei | Finish 1st stage in story mode.
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| Honjo Yuichiro | Collect all the letters from all the people you can save.
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| Nakatugawa Kazuya | Examine all evidence.
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| Ogata Shunsaku | Finish 5th stage in story mode.
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| Sima Ryuji | Finish 2nd stage in story mode.
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