Here is the full list of all 30 Quickie: A Love Hotel Story achievements.
Earn the fifth star at Quickie Love Hotel in Shibuya.
Gift all Victoria items.
Meet Victoria.
Earn the fifth star at Quickie Love Hotel in Harajuku.
Gift all Reika items.
Gift all Aria items.
Earn the fifth star at Quickie Love Hotel in Akihabara.
Gift all Toshiko items.
Gift all Mai items.
Gift all Satomi items.
Gift all Sara items.
Gift all Professor Belmont items.
Unlock Shibuya.
Meet Aria.
Earn the fifth star at Quickie Love Hotel in Roppongi.
Unlock Harajuku.
Meet Toshiko.
Complete Satomi's Story.
Unlock Akihabara.
Meet Mai.
Earn the fifth star at Quickie Love Hotel in Shinjuku.
Unlock Roppongi.
Meet Sara.
Meet Professor Belmont.
Complete the Introduction!
Meet Reika.
Meet Satomi.
Complete Reika's Story.
Complete Professor Belmont's Story.
Complete Toshiko's Story.