If Ling Feng had only mentioned Seele, Ein might have thought it was someone with the same name. But... mentioning Bronya alongside Seele basically confirmed it. The Seele Ling Feng was referring to was the Seele from Cocolia's orphanage...
A few years ago, Seele had vanished from this world because of Cocolia's experiment, and Bronya had been taken in by St. Freya Academy afterward...
"Ein..."
Tesla thought for a moment as well. "I remember Bronya seeming to mention Seele's name before. Especially when Bronya was first brought back to St. Freya Academy after we rescued her—I was responsible for treating her, and she called Seele's name more than once..."
"Mm..."
Ein nodded slightly. "I know Seele. Her full name should be Seele Furla. She was Bronya's companion at Cocolia's orphanage, and one of Cocolia's test subjects. Later, Seele vanished after taking part in Cocolia's experiment. Back then... we thought Seele had died like the previous test subjects. But..."
"I never expected Seele to become a Quantum Ghost..."
Ein looked somewhat surprised, but she remained calm. "If Ling Feng wasn't hallucinating and she wasn't lying, then she might really be Seele. As for why she said she needed our help... I think she wants us to turn her back into a collapsed-state entity..."
"Uh... Seele..."
Ling Feng silently repeated the name. "If I'm not mistaken, she probably left the formula on my hand last night too. She was likely telling us the formula for turning a human Quantum Ghost back into a collapsed-state entity. Because she wants to return too, she used my arm to give us the formula and ask for help!"
"That deduction makes sense..."
Tesla agreed. Then she stuffed the remaining half of her bread into her mouth and mumbled, "Mmph... th-then let's hurry and check Ling Feng's