Talk:Licht Bach/@comment-2A02:C7F:6420:2700:3469:44D8:D874:9075-20191223011314/@comment-44518136-20200101093221

From the looks of it it's not actually a count, but rather his identification code. Nikola referred to him as subject "001", which is the number we see in his eye. Douan also had 003 in his eye during their fight and Tokikaze had 002 in his eye in chapter 54, so it's safe to assume the number represents the order they were made into Aces.