^^There are usually two kinds of couples, the romantic and the comical. Yunigear fall under romantic and slightly comical, while Nep and Noire are more comical. But yeah, we need more Unigear
They were introduced in the PC-98 Era, which Came before EoSD and was the older style. People tend to avoid the PC-98 Era in Touhou and Gengetsu really is rape.