How are they twins exactly? The title makes no sense ╥﹏╥

No hate but look at them their hair's the same but flipped ╮(￣▽￣)╭

I see what you mean but I I think that’s just the art, maybe there’s something I didn’t notice??

Theyre twins but according to the devil it seems like the angel has no knowledge of them being twins or may have forgotten it.
Information of how they can be twins while being different species (angel and devil) may be revealed in future chapters

I see! Thank you!(づ￣ ³￣)づ

They are twins. When they were both angels and kids Kanaki killed another angel to save Shinori’s, and to save Kanaki’s life(because the other angels were gonna kill him) the demons took him and wiped shinori’s memory of Kanaki ╮(￣▽￣)╭