Shitsuji wa Oose no Mama ni
this trash manga was mostly about butlers and cat people. the last chapter was about vampires and it was over the top redonkulous.
Giglio
please dont read it. this is one of those yaoi that makes you never want to read yaoi again.
Ryoshuu Reijin
According to this site, this manga was released in 2000. That would make it a little more OG than hyakujitsu no bara, which has a similar plot. This story is about a prisoner of war who gets special treatment from an officer. Eventually, the officer becomes obsessed and completely delusional and falls in love. Later, the prisoner also falls in love, and it seems like they have moved from a crazy delusional love to the real thing. Maiden rose explores similar themes but has a couple more volumes to do it in. This story was very similar and i think it is valuable to look at it an compare it to newer iterations (such as maiden rose).
Tsuki to Yabanjin