Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Almost a Pantsu Hunter	Collect twelve panties.
Amateur	Open fourty endings.
Anna's Lover	Collect six panties in one try.
Expert	Open all endings.
Haruka's Lover	Collect five panties in one try.
Masterpiece	Complete all the achievements.
Not a Pantsu Hunter	Collect six panties.
Novice	Open fifteen endings.
Pantsu Hunter	Collect eighteen panties.
Side Stories	Open all extra-scenes.
The Death Chairs	Die ten times on a chair.
The End	Complete epilogue.
The True Loser	Lose hundred times.
The Virus Destroyer	Remove all viruses in ten seconds.
Unlucky	Lose fifty times.