>>282103190
The circumstantial evidence points to a love triangle of some sort. The novel version has a bit more of Haru's thoughts earlier that didn't make it into the manga.
Massaged Google TL:
*****
"Yeah, I can't believe she dumped childhood-friend-kun."
"She didn't seem like that when he came to our class (maid cafe)."
"So... something happened between the two after that."
"Something... like what?"
Really, like what?
When her boyfriend came to our class's cafe, they both reacted so innocently, and it seemed like they were connecting with each other...
What kind of sudden developments happened in just the next few hours?
...Well, just one thing does come to mind.
I definitely don't think it's the case. There's one factor, and it's a one in ten thousand chance, that might be related, but...
"Plus, Aya-chan hasn't even come to school in a while..."
"Ah! You're going to say that? You're going to say it!?"
"...Hey, do you think these two are connected?"
"I don't want to think so!"
"Of course you do!"
I was trying so hard to be vague, but Yuki blurted it out, so I'll say it.
Ever since that day... when the smile disappeared from Hikari's face and the words disappeared from her mouth...
We haven't seen Aya once.
"Those two were so close..."
"Maybe a little too close..."
I don't know how her boyfriend is related.
But Hikari and Aya's closeness...or rather, "too-closeness", felt like it was a little dangerous.
How should I put it, Aya seemed to be dependent on Hikari, and Hikari, perhaps sensing that aura around her, seemed to be a bit too devoted to Aya.
But even so... Aya wasn't jealous of Hikari falling in love with her childhood friend, and in fact, I think she was the one who supported her the most out of all of us.
And yet now...
Aya continued to skip school, deleted her LINE ID, and completely disappeared.