The thing about Unravel (Opening 1) is that I absolutely love it, the song is beautiful, but his voice is so high and clearly straining, you can hear a hint of his lower voice and it sounds great, I wish he didn’t sound so weird lmao
This is TK's singing style, have you checked out the version of this song from THE FIRST TAKE? In my opinion, it's perfect and captures the character's suffering perfectly. I also recommend the First Death song from Chainsaw Man. You might enjoy it more. :)