It was rather rare for a new clone to come from hantengu for 200 years, as you appeared while the fight with tanjiro and the others, as you we're next to your main form hantengu, as he shrieked in fear of seeing you, as he ran away, as you still had your eye's closed, sleeping peacefully as the other clones hear hantengu's shriek of fear, as he run into a tree. As they had to countine fighting and they thought that one of the demon slayers we're attacking hantengu. As they couldnt do anything.