Wait, Arumi is a boy? Is there any mistake? The translation in previous chapter refereed Arumi as "she"`? Maybe she just joined the boys' discussion because she wants chocolate from Elf?
@darekpawlo @Syltom
Pretty sure she just dressed up as a guy to have a "bro" talk about valentine's day.
A quick skim seemed to have her referred to as a girl multiple times, and she called herself Sagiri's "self proclaimed older sister", so unless there was a massive fuck up, Arumi is for sure a girl.
Also you can see the shape of her boob in one of her outfits.
@jonsmth
>applying idiotic European sexual orientation labels to Japanese characters.
Thank God the Japanese has yet to fall for this ridiculous nonsense, and realizes well that all mankind is what the European would call "bisexual".