Though the first interaction with Apia had been kind and sweet, Kanbarus's first two sentences hit Yui like a punch in the guts. Yui, taken by surprise by this, just stared at Kanbaru - blank stare - without knowing exactly just how to react.
"I'm sorry, I--" by the time she began speaking, after having snapped out if it she was just interrupted by the blue haired girl giving more of her mind to Yui.
For a second after that, Yui's old personality surfaced and she had half a mind to just flee this situation. Remembering the discussion she had with Gattica and Bonesword, she pat the little snake on her arm as if to remember herself why she was here - as well as giver herself a bit of courage.
"I didn't know..." A pause.
"For the longest time, I didn't know I even had a sister. And neither did she. Believe me. I tried..." in Yui's mind, flashes of her last encounter with her long-lost sister flooded her mind. From when Yui tried to stop Touka from leaving. Never one to get angry, Yui instead took an apologetic tone when she answered;
"I know you and Touka were close... I am sorry I couldn't help her, but I tried. Once I learned the truth, I really did. You don't know...do you?" The newly ascended servant of nature seemed to hesitate for a second before resigning herself.
"I was with her before she left... before the magic completely disappeared, we were together. I... I tried to stop her - i-it evolved into a fight I couldn't stop!" more flashes of Yui's bloodied and broken body formed in her mind, the parting gift from her sister. Yet, despite that she only felt remorse and sympathy for the fallen Magical Girl.
"In the end, no matter what I said, I couldn't get through to her...I'm sorry." she concluded, wiping away a tear. She really, truly felt sad and there was no mistaking it. There was not an ounce of anger in Yui's words, not towards Kanbaru's harsh stance nor towards the sister who almost took her life. She only had regrets, truly feeling sorry she didn't know any sooner - sorry that she couldn't, as Kanbaru said, be a sister to Touka before it was too late.
A small silence probably fell between them before Yui tried speaking up again but heard a voice and felt a hand grab her. Surprised, she turned to see the newcomer seemingly hostile towards her...asking if she needed to be removed?
"I-I'm sorry? I haven't done anything...wrong?"