Join the Science Club!
Meet the two girls.
Go on a 'date' with Naomi.
Reach Kiyoko's 'good' ending.
Reach Naomi's 'good' ending.
Finish the game.
Finish Act 1.
Finish Act 2.
Complete 'Sae's Day Out' bonus scene.
Complete 'Sae-entific Hearts' bonus scene.
Meet 'Ceri' with either Kiyoko or Naomi.