Hmm, that might work. Bleach had some good horror bits at the beginning, back when it was humans vs. hollows. Then the powerlevels kicked in and that vanished. It's really hard to be scared of stuff when you're nigh-invincible and can kill anything that looks at you funny (see: Resident Evil 4).
Another thing that he might be good at would be something mystery-oriented.
Or he could just start a clothing line.