Yup, that was creepy.
During that scene, I didn't even notice there was a butterfly getting lured by the light in the foreground. It's kinda ominous if we make the parallel with what's happening to Yoshiki, even though I don't really understand how he feels about "Hikaru" yet.
I'm not sure Yoshiki himself really understands. He seems both relieved that Hikaru survived in some way but also scared shitless about it.
The title is a bit weird too since Hikaru died in January. Is it referencing the fact that Yoshiki only just got the confirmation that his friend died?
But seeing that some villagers seem to know the true nature of Hikaru and that blonde exorcist(?) is on the hunt, there might be more death in store for Hikaru before summer is over.