凯瑟琳 凱瑟琳 キャサリン 캐서린
Victorian worker Catherine—she carries a heavy spanner in her hand, but it's not for fixing you up.
A playable Supporter Operator in Arknights.
Stainless's grandmother. Originally appearing as an NPC during Act II of the Main Story, she later became playable in the Side Story Ending a Grand Overture
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