The current spotlight is Yami no Koe from Black CYC. It released on 2001-06-08, their very first work! It's a "corruption" simulator where gameplay revolves around pairing characters together to unlock their desires. The system is pretty complex, so I won't go into depth here. You can pair any two characters together! As a result, it is often praised for being extremely queer. Sayoko, the mistress of the manor and the entity behind all of this, cultivates a space where the characters can let go of their inhibitations and indulge in their fantasies without worry of social norms. This is a novel I love so much~! I will write a review on it soon as there's so much to love in this title. Please give it a look!