Another (anime) Episode 5

Mochizuki

So, she existed. And it wasn't that scary anymore after Mei explained everything to Kouichi. Now, they are treated as people who don't exist. In case you don't know, the guy who left a note in Kouichi's drawer with the duty roster is Mochizuki. He was the one who drew a picture of a screaming lemon, I think. That drawing was unexpected.