He isn’t aroace and he seems straight. There was ambiguity in the beginning because in the chapter that he died he asked whoever takes his body to take of Yoshiki, a lot of ppl thought it was in the way of friends (and they were right) and that Yoshiki’s love was one sided and unrequited but that Hikaru really loved him as a friend regardless. The other side interpreted that as romantic even though it doesn’t necessarily have to be. Like human Hikaru’s soul said, he was worried about Yoshiki. Since it wasn’t definitively confirmed (until now) people took ‘Hikaru’s’/Natsuki’s love/obsession for Yoshiki to be a reflection of Hikaru’s true thoughts and feelings and reeeeeally felt powered up by that.
thanks for replying! i think everyone just headcanon him as aroace bcs most aro media i saw they include Hikaru. I genuinely think it takes a soul to understanding this character and im glad to see it from u
is the human hikaru aroace? then why did everyone think he liked the uke?