the 9th day achievements

Save the game once.

Through the link in game to arrive at the official shop.

Through the link in game to arrive at the official blog.

Watch OP for the first time.

Prologue finish.

Appreciation mode all music listen once.

Watch ED for the first time.

Through the link in game to arrive at the official website.

Suzu line pass.

Game time breaks through 10 hours.

Occupy all archive places.

accomplish all above and get a platinum trophy.