In all, their character was heavily inspired by Transistor game: Mar is also a mute girl, whose boyfriend trapped into a sword. However, she is shadromancer artifo (closed species by me and my friends), and he was her ward-dreamer, who died, trying to protect her from ghoul's attack without realizing that he can die himself. She wasn't able to revive him, and his soul was closed in the artifact sword. After this issue Mar lost her stable appearance and became artifo. Her appearance has instant glitch, horns usually change their shape, and scarf can just levitate in the air, divided into many pieces.

Their names were chosen by associations:
Mar - "mara", dream;
Iam - I am, 'cause soul of her ward got partial amnesia even if he still able to speak with her.

In Circles
The Spine
We All Become
Signals
Paper Boats
Somebody I used to know