After recruiting Samara, eventually you’ll be informed that she wishes to speak with you. Find her on the Normandy and she’ll tell you about the fugitive she’s been hunting, the nature of the monster she seeks, and why it’s personal. This starts the mission The Ardat-Yaksi.

Use the Galaxy Map and travel to Omega . Once you arrive, you’ll want to head over and enter Afterlife. Head back to Aria’s location and ask her about Samara’s daughter and she will tell you to go check out the nearby apartments. Look at your map and head to the apartments marker.

Enter the apartment area and when you see the mad prophet, duck down the alleyway to the right. Enter the now accessible door on the left and speak to the mother here; her daughter is the one who has been killed by your target, so investigate and ask to look in her room. Read the journal on the bed, the message on the floor and the object on the table (these will all give you important conversation options later, so be thorough). Afterwards Samara will chat with you.

After the conversation with Samara, look at your map and make your way to the Afterlife VIP area. Tell the guard here that Jaruut sent you and he will unlock the door and admit you access. After another short conversation with Samara, it is time to enter the VIP room and seduce the evil Asari.

To attract Morinth you need to be the most exciting person in the bar and that means getting involved in everyone’s business. Before you do anything, go up to Vij near the entrance and talk to him about a ‘sensory band’ called Expel 10 for a conversation option later on. Afterwards, the bar is your oyster!

You can partake in the following actions:

• Help Horftin - Talk to Horftin and he will ask you to go help his friend. Go over to Florit on the far side of the bar and choose the “Terminal” option, then the “Eternity” option.
• Insult Verf - Go up to the Krogan at the bar and insult him (Renegade).
• Dance with Waera - dance with the Asari on the dance floor (Paragon).
• Free Drinks - Ask the bartender for free drinks (Paragon) , or buy a round for everybody.
• Punch the Turian who is trying to buy the Asari’s company.
• Fight the Turians who are scheming by the bar (Renegade).

After doing enough of these activities you will be approached by Morinth who will invite you to a private booth to chat. If you do not say the right things to her during the conversation at this time, she will leave and you will be unable to find her again, causing you to fail the mission. If this happens, load a previous save otherwise Samara will not become loyal to Shepard.

Begin the conversation by saying “We’re alike.” or “I’m confident.”, then pick the following options to pass her conversation test:

• “Music” / “Expel 10.” / “Like Hallex?”
• “Art” / *“Like the elcor Forta.“ / “Vaena.”
• “Travel” / “I like the danger.” / “Power is its own reward.”

Once you have impressed her, she will take you home. You will now have to keep her busy until Samara arrives. Examine the gun on the wall behind you and to the right for a Assault Rifle Damage upgrade.

You can examine various other objects, but eventually you’ll have to chat with Morinth. If you can’t pass any Paragon/Renegade checks, just pick the normal options and eventually Samara will arrive and put Mornith down. On the other hand if you can pass three Paragon and/or Renegade checks in a row you’ll get a chance to interfere in their fight, which allows you to betray Samara and replace her with Morinth. The consequences of this choice are covered in more detail here, while the differences between the two can be found here.

Make whatever choice you will to complete this mission.