Here is the full list of all 20 My Escort Company achievements.
Create your Escort Company
Hire Aki
Hire Hayami
Hire Rini
Hire Kanaye
Hire Mai
Hire Chio
Hire Nari
Hire Sora
Hire Umi
Complete 50 requests!
One of your girl reached level 2!
One of your girl reached level 3!
Unlock your first cutscene! Check the Gallery!
Unlock your first special video! Check the Gallery!
Unlock your first pose/outfit! Check the Gallery!
Open 10 rewards/Spend 50 stars!
Open a new Area!
Purchase an upgrade!
Finish the tutorial!