Questions about Yasu in the manga (major spoilers)
I feel like the depth of Yasu's relationships are elaborated more in the manga, especially his relationships with Shion and Miu. I might be wrong but didn't Yasu have some kind of strange interaction with Shion or seeing her while he was dating Miu? It was nothing explicit, I just recall he was over at her's for some odd reason and tried to stay over? Something that was implied and not explicitly said, easy to miss.
Sorry if this is confusing or a nothing burger I saw someone rant about this panel/interaction a bit outta context, if it is true, it does make me feel odd about the anime fans really idealising Yasu, then again he is objectively one of the least problematic characters.