Is what you read up right? Shounen Ai is probably what you are thinking of though. 'Yaoi (/ˈjaʊi/ Japanese: やおい, Japanese: ), primarily known as Boys' Love (BL) in Japan, is a Japanese genre of fictional media focusing on romantic or sexual relationships between male characters' It doesn't need to be porn to classify as yoai.
The definition of yoai is 'romantic or sexual relationships between male characters'. But I am curious, from technical perspective, why would this anime not be yoai? People who watched it (including people in this very thread) state that there is a romantic relationship between two males (or strong implications of that), which would technically make it yoai. I haven't seen this anime and I haven't seen any yoai. If Yuri on Ice is Yaoi then every single romance shoujo anime is Hentai.
