Board Thread:General Discussion/@comment-24221126-20140315025115

is easily noticed Kamui Mangekyo Sharingan never cooldown ( return to level 0 states ), neither Kakashi nor Obito eye do that, if Kamui is overused or turned off, it become 3 comma sharingan ( level 3 ), and even when both eyes are with Obito ( in Kakashi Chronicles ) it didn't return to normal . 