Not sure about labels since the characters dont mention anything. But Yoshiki DOES Romantically like the OG Hikaru. However, while love in general is a big driving force of the narrative, "romantic" love isn't really discussed much by the characters. All that to say that the shounen ai tag may be misleading to some.
yes but its not like fluffy romance But they are gay as hell
Mokumokuren has described the manga as a horror and coming-of-age story, not a love story. However, the author also stressed that they're definitively queer, emphasizing that queer stories do not always need to revolve around romance to be valid.
It's has tag of shounen Ai