Description of Experiment: Subject has been made part butterfly, chemicals were added and internal organs modified to be more like a butterfly. The chemicals caused the patterns on the eyes to become more prominent and also caused the eyes to turn pink, and bleed. Fully working artificial wings were also added, and hands were replaced with more adapted ones, that are more like insect limbs. Antennae were connected to the head, they are highly sensitive feelers. Subject has a very strong taste for sweet things like syrup now.
History: Subject #52 came along with the other Warriors of Hope, on a "mission" that was secretly a trap. Kotoko was told to search the sector 4 hallway. Keebo was sent to knock her out and reluctantly had to. Kotoko was extremely shocked when she woke up and didn't fight back when being brought to her cell. However, she was stubborn about wearing the clothes we gave her, so we ended up giving her a different dress. She often talks to experiments #51 and #53. The subject seems to be hiding anger towards Junko and experiment #50, Monaca Towa, especially after speaking to her group members.
K.Y Notes: Kotoko Utsugi was a child actor, back during my days at Hope's peak I'd see her on stage during the school's yearly plays. Why I'm bringing this up, is because Miss Utsugi prefers to hide her emotions with her acting abilities. The only real emotion I can tell she's experiencing is anger, specifically her anger towards the young Miss Towa. She blames her for what happened to the rest of the Warriors of Hope, and rightfully so. I've yet to make any progress on properly befriending her, but one thing I've learned is to not say the word "gentle" around her. The reason for this being her trigger word is likely related to some kind of traumatic incident that occurred in her past.