Harmony: The Fall of Reverie

There are multiple paths to unlocking this as none of your decisions in this game really matter, but here's how I did it. I'm only listing the decisions involving Yana as nothing else affects this (i.e. what crystals you have):

In Act 2, when I placed the phone call I chose:

• Reveal your Identity
• Strike up a conversation
• Listen to Yana's memories
• Classified information
• Wait and see
• Gain a new friend

In Act 3, I chose Omar's plan and then later on Jade's plan. This leads to a meeting with Yana where I chose:

• Meet Yana
• Give Yana time
• We want to free the Prescients

In the unnumbered Act after Act 3, in Chapter 3 I chose:

• Wake up
• Eat something
• Watch TriVid
• Open the door
• Spend time with Yana

In Act 4 Chapter 1, ​I chose to talk to Glory & Chaos. Following Glory's advice, I declined Nora's invitation and chose to meet with Yana instead of Ursula. From there:

• A quick tour
• Raid Ursula's stash
• Ice cream scandal
• Choice Yana never had
• Distant memory in the garden
• Don't bogart the joint
• Relax in the sun
• Let's go to the beach
• An electricifying kiss
• A day off from everything ("Time to Heal" achievement will also unlock here)

Act 5 Chapter 1

• A brand new day
• Every day
• Oppose MK's offer
• Find a way
• Ursula's warning
• How do I take care of everyone
• Alma's charity
• Ask for food
• A fundraiser
• Time to answer MK
• Reassure Nora
• Take the money
• At the end of the day
• A frank discussion
• Bridge the distance

Achievement unlocked!