Yuuka Kazami (EntityTopic, 9)

From Compile Worlds

Yuuka Kazami is youkai moe, yes that's true. But she's also an S. Really, everyone's M for Yuuka. ♥

Perhaps most especially so is Elly, Yuka's gatekeeper who might be a huge slacker or the complete opposite, depending on where you look for your sources. The latter makes quite a big thing about pouring candle wax...

She's sometimes nicknamed Yuukarin. But, just to be confusing, Yukari is sometimes nicknamed Yukarin, so they can only be differentiated by the length of the u...

She's quite notable for being one of only two characters to debut in the PC98 Touhou games but make a return in the Windows ones.