Kuu Dere is an Easter Egg Character added in the November 15th Update.
Kuu Dere is a Kuudere, she exhibits little to no emotions, and is generally antisocial, keeping to herself mostly. Her answers to most questions are neutral, such as " It doesn't matter. ".
She doesn't want a Senpai either.
"I don't even need a senpai."
"I don't care who senpai is dating."
"Who wants a Senpai, anyway?"
"It doesn't matter."
"I don't see the point."
"It's okay, I guess."
- At one time Kuu Dere had Mai Waifu's hair and pink eyes