Ummmmmmm... hate to break it to you, but that's totally not a mullet.
He was suspicious from the words "delicious pancakes".
I accidentaly spoiled his betrayal while searching for rule 34 art
I found him suspicious from the start. When he joined, I pegged him as the traitor.
I thought he will be some unwilling good-natured traitor or spy, like Cait Sith. I didn't expect him to be such monster.
When he started talking to Sae Nijiima about 'his justice' it set off alarm bells and when I saw the man in the black mask in Okumura's palace, I pegged him as the triggerman for the operation. Admitedly I had no idea how twisted he really was. Shido's palace was quite the eye opener.
Oh, noes, the animullet!
Nice colours ~