Eurea

Aporia's love interest was a girl Aporia who Aporia fought alongside as a young adult.

Biography
The girl and Aporia battled Machine Emperor Grannel Infinity together using rocket launchers. However Grannel attacked the building they were shooting from, killing her.

Aporia survived the attack and regarded her death as his despair of losing someone he loved. His embodiment Primo is based on the despair he suffered at this part of his life.