First 6-Star Operator Promoted to Elite 2

Mine is Lumen! Until then, I only had Elite 2s for 4-star operators, but after reading the 'Under Tides' story, he became my absolute favorite. I promoted him to Elite 2 purely on the impulse of 'Woooah, I love him!!' Now, his skills are fully specialized, and he's working hard as the main healer for my Rhodes Island. Sometimes, during Contingency Contract, I get really happy when a friend uses the Lumen I have in support. Who was the first 6-star operator you promoted to Elite 2? I'd be happy if you told me!