Someone I've Never Met

While relaxing in the hallway with Yashiro, Amane overhears a few girls talking about the Seven Mysteries of the School. Specifically the most infamous, and his very own story—Hanako-san of the Bathroom. But as they continue, he begins to notice a few things are... off about their telling of the rumor. It was just tiny things, really... But they still managed to set off warning bells in his mind. Especially when another person joins the conversation and adds a very particular detail that wasn't—and shouldn't have been—a part of the story.

Hanako-san was actually a boy named 'Tsukasa'.

Worried that his brother was planning something, Amane followed the new speaker as they disappeared down a distant hallway. However, instead of tracking down his twin and confronting him, Amane came face-to-face with his own boundary.

As it turns out, the person inside would make Amane question a lot of things about his family, his childhood, and his own understanding of supernaturals in general.