Book Off Manga
If you travel to the Meiji-Jingumae metro station or Harajuku JR station and walk down Takeshita Dori from the park side, you’ll pass Book Off (1-8-8 Jingumae) as you walk back along Meiji Dori to the metro. It’s also a great place for discount CDs: I picked up the lesser-known works of Tears for Fears and a terrific techno-flamenco compilation for a pound or two each.