Marian

Marian was originally a Nikke who was a member of Silver Gun. You first met Marian when she saved you when the helicopter you were in was shot down. It was later revealed that Marian was the one who shot down the helicopter due to becoming corrupted. Unfortunately, you were forced to put her down despite the two of you developing a special bond. During a mission in the snowy mountains, you would encounter a Heretic and soon discover that it was Marian. However, she didn't recognize that name and referred to herself as Modernia. Eventually, you and a joint operation with many sqauds would fight to bring Marian back. You would temporarily succeed, but a Rapture named Chatterbox would corrupt Marian, forcing her to have a mind wipe and forget everything. Despite her memories being gone, Marian still remembered you and was always happy to be with you. However, the Ark wanted Marian for research purposes, forcing you to send Marian away with Snow White and her squad to look after her. Snow White and the others would drop Marian off a castle called the Kingdom, to which two Nikke's named Crown and Chime would look after her.