Complete the indicated task to unlock the achievement.

Achievement	How to unlock
Aika	The first meeting with Aika.
Aika and Yukino	Have you met Aika and Yukino simultaneously.
An unexpected guest	Suddenly Aika came to visit you.
Choice	You have the right of choice.
Disorder	You have a disorder.
End?	This is the end?
Eva	You learned the name of the mysterious stranger.
In school	In school first time.
Lie	Ending: Living in a lie.
Shadow	You met with the dark essence.
The mysterious stranger	You met a mysterious girl with white hair.
Truth	Ending: here it is, the truth.
Weekend	You had a fun weekend with Yukino.
Welcome!	Welcome to the game.
What?	Stop, Aika and Yukino?
Who are you?	I'm Thoru.
Yukino	The first meeting with Yukino.