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