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