Karakida was a victim of Ditto Arc.
Yuki visited Karakida to discuss about the Horinouchi's book, The Girl and the Dollhouse (少女と人形の家, Shōjo to Ningyō no Ie) Karakida is the one of those who give his book harsh criticism, which makes Horinouchi angry.
Karakida was attacked by possessed Riko and thrown out into the dumpsters. She's okay. This incident makes Yuki blamed until Kentaro and Idiomus clears her name.