Day Of Sagittarius mode: Chara...
	Mini-games...
	Poker mode: Alternate costumes...

When Day Of Sagittarius is first unlocked, you can only play as Kyon and Nagato. Complete the indicated task to unlock more slots and the listed character.

Slots and character	How to unlock
Five character slots and Haruhi	Finish the four character slots.
Four character slots and Mikuru	Finish the three character slots.
Three character slots and Itsuki	Complete the two character slots.

Complete the indicated task during the main storyline to unlock the corresponding mini-game.

Mini game	How to unlock
Beach Volley	Win the match in Chapter 4.
Poker Game	In Chapter 5, select the second option from Itsuki to get rid of him, then select Mikuru and finish with an "SOS Grade" rank.
The Day Of Sagittarius 3	In Chapter 5, select the second option from Itsuki to get rid of him, then select Nagato and finish with an "SOS Grade" rank.

Complete the indicated task after unlock Poker Mode in Chapter 6 of Mikuru's storyline to unlock the corresponding costume.

Costume	How to unlock
Haruhi's Bikini	Defeat her Common Cloth version.
Haruhi's Common Cloth	Defeat her School Uniform version.
Haruhi's School Uniform	Defeat Mikuru's Nurse Dress version.
Itsuki's School Uniform	Defeat Nagato's Witch Dress version.
Itsuki's Swimsuit	Defeat his Thief Dress version.
Itsuki's Thief Dress	Defeat his School Uniform version.
Mikuru's Bikini	Defeat her Nurse Dress version.
Mikuru's Bunny Girl Dress	Defeat her School Uniform version.
Mikuru's Maid Dress	Defeat her Bunny Girl Dress version.
Mikuru's Nurse Dress	Defeat her Maid Dress version.
Nagato's Bikini	Defeat her Witch Dress version.
Nagato's School Uniform	Defeat Haruhi's Common Cloth version.
Nagato's Witch Dress	Defeat her School Uniform version.
Tsuruya's Bikini	Defeat her Maid Dress version.
Tsuruya's Maid Dress	Defeat her School Uniform version.
Tsuruya's School Uniform	Defeat Itsuki's Thief Dress version.