Manga Plot

Lonely Hide and Seek (Part 1)

C-ta has his first appearance when B-ko yells at A-ya for starting rumors about her, and D-ne interrupts her rant with a comment about how she likes her dual nature. As B-ko responds that it only sounds like she has a split personality, C-ta says how she always seemed to have a soft spot for D-ne and that it really sometimes seems like there are two different B-kos around, then puts his arm on A-ya's shoulder to get his agreement. However, he receives none.
When A-ya tells the other three about how he feels like he is being watched by someone, when there is actually no one around, C-ta asks if it could be something similar to a Zashiki-Warashi.