Sounds like a very bishounen thing to do, standing apart and brooding, perhaps with long hair blowing dramatically in the wind, even if there is no wind. Now, I don't know if Tensaiman is a bishounen or not. But this is me exhibiting my anime ignorance. :)

This looks like the Tensaiguma equivalent, all right :)

Hmph.

(I had to do that)

You are right. Tensaiman is a bishounen! More like a biseinen, actually.

But he doesn't brood. That's actually him being humble about his smartness. That "Hmph" is in the same context as a chuckle most of the time (and he does chuckle every once in a while).

If you could ACTUALLY SEE HIS MOUTH, he would have a little smile whilst closing his eyes.

However, it is VERY common for a mysterious caped hero like him (or as I call them, "Manto Biseinen") to brood like that. They usually have dark pasts, are very serious, always live life alone, and their sole purpose is to fight enemies, then run away into the night. They also have epic nicknames like "The legendary something" or "the tragic something". or the "lone something".

Tensaiman was like that in the 5 episodes he appeared in the swan song of the anime, but he became a good guy in the finale, and in the manga, he eventually fitted into the series as a normal ol' super hero.

Hmph