Q&A: Does Idia's Hair Burn? (Twisted Wonderland)

Question: Does idia's hair burn?
0:02 - Idia says that his hair is not usually hot
0:32 - Idia's curse and Grim
1:03 - Malleus' blue flames mistake
1:49 - Grim's flames
3:00 - When Idia takes a shower