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