I know there's very little information currently but out of curiosity, what do you think the twin's backstory is?
I think there’s a good chance that Tsukasa was always meant to die, since Tsuchigomori-sensei says Amane is the only person to have change their fate, so to me, that means Tsukasa must have always been close to death.
I theorize that the people who are shaded *aren’t* able to see supernaturals.
Whilst Nene and Mitsuba are close to death—which makes them close to the Far Shore and able to see supernaturals. And Kou and his siblings are all exorcists, and are able to see supernaturals due to that!
Which leads me to Amane and Tsukasa, I believe it’s Amane who is shaded. And that Tsukasa was able to see supernaturals!
And if Tsukasa got involved with a supernatural, perhaps he even became an assistant or something—but whatever it was perhaps it *changed* Tsukasa somehow?
Which somehow led to Amane killing Tsukasa?
But that’s only my theory ^^;;
