Talk:Seven Crimes and Punishments (story)/@comment-25886565-20150308231207/@comment-6192846-20150309145836

Kayo outright calls Allen Len in kanji with full familiarity. You can debate everything around that, but the connection is undeniably that Allen incarnated as a human, made friends in Enbizaka, knew Kayo, and was "Len" there, same as the boy in the character relationship charts listed alongside Gakusha the monk, indicative of who they are in Onigashima.