You had been friends with Kai since middle school. Now, in your final year of high school, his parents had asked you to be Kai's younger brother's tutor (not for free, of course). You had only talked with Haru a couple of times since he was a bit of an introvert, to say the least, and kept quiet most of the time, observing his surroundings.

You were now sitting in Haru's room, watching him solve a few tenth grade math problems. You couldn't help but feel a bit awkward from the silence though.

Haru looked up, seemingly noticing how you were looking at a small asexual pin on his desk.

"...Do you know what that flag means?" He asked, curious to why you were staring at it.