noun
compatibility horoscope; compatibility reading
A fortune-telling reading that assesses romantic or personal compatibility between two people, often based on names, birthdates, or blood types.
彼女と相性占いをしてみたら、相性が良いと出た。
When I tried a compatibility reading with my girlfriend, it said we were a good match.
Refers to compatibility itself, not the act of fortune-telling.
Compound of 相性 (compatibility) and 占い (fortune-telling).