 If you liked
Pet
|
 ...then you might like
Sankaku Mado no Sotogawa wa Yoru
|
-Focus on story of people with supernatural/abnormal powers. In Pet it's entering minds/memories of others, in Sankaku ghosts, curses and such
-main duo with a certain dynamic (balancing near that BL line)
-characters interesting from a psychological angle
Really similar psychological and spiritual themes, as well as prominent BL character relationships and power dynamics. If you liked one, you might be interested in the other. :)