Ryokunohara Labyrinth: Sparkling Phantom

Both of these older, one-episode OVAs are about high school students and their encounter with a supernatural entity. They have different plots, but their overall style and feeling is similar. 

Two highly compressed shoujo OVAs from the late 80s / Early 90s that will leave you feeling... confusedn at best. They do have a banger soundtrack at least. 

Two romance OVAs from the 80s with supernatural events, alternate dimensions, doppelgangers, gays (Ryokunohara Meikyuu is BL and Majo demo Steady has the stereotypical from the 80's) and a red-haired girl who is the culprit surely. Also they're probably the weirdest and non-sensical stuff you'll ever watch. Ryokunohara Meikyuu is more like a wasted potential drama and Majo demo Steady is a romantic comedy so bad it's good. 

Horrible anime OVAs with ultracompressed nonsensical corny stories which feel like a waste of time and potential but at least they come with banger openings. Well... Ryokunohara Meikyuu at least is animated and edited properly. 

Both great shonen ai ovas with supernatural.