- Before the Fall manga
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Corina had short, fair hair, big eyes, and circular spectacles. She prominently wore dark-colored clothing as a weapon-smith, such as a jacket over her shirt and gloves.
Not much was known about Corina, other than her devotion towards Angel. She seemed to be a bright person who had a passion for her field of work.
The Titan's Son arc
Visit to the Industrial City arc
Corina worked as an assistant for the inventor Angel Aaltonen, helping him develop a prototype of the vertical maneuvering equipment (which they referred to as "The Device"). When the Titan Cult opened up the gate of Wall Maria, allowing a Titan inside, Corina was one of the many civilians devoured.
- Her surname is Finnish, "Ilmarinen" is a character from The Kalevala - the Finnish national epic poetry. Ilmarinen is an artificer who crafted various magical devices; somewhat similar to Corina who worked as an assistant for the inventor Angel Aaltonen. Corina also invented the portable gas burners.