- Actor Allusion: In the dub, Yoshimori gets pissed off over being called "shorty".
- In Episode 24, one of Yuri's friends picks up a cute puppy. The girl in question is voiced by Carrie Savage.
- Another FMA shoutout comes when Yoshimori is training with the crows. At one point, he calls himself a pipsqueak, using the exact same tone of voice Ed Elric would.
- Ichiro Ogi is a huge guy who happens to hide behind a mask. And he's voiced by J.B. Blanc. Hmm...
- Hey, It's That Voice!: Vic Mignogna as Yoshimori Sumimura, Laura Bailey as Tokine Yukimura, Mary Elizabeth Mcglynn as Aihi, and Barbara Goodson as Tokiko Yukimura.
- On Yoshimori's alarm clock just below the pointers it says "Sunrise". This is probably a reference to the Sunrise anime company which hosts anime as well as Kekkaishi.
- In episode 41 at about 14:09 when Tokine is telling Yoshimori how to defeat those "black things", she explains how her mother kills roaches. When the roach is shown flying towards her mother, they re-enact the famous bullet-dodge from the Matrix.
- In episode 2 when Yoshimori's father and brother are drinking tea and eating cakes, Toshimori is reading the "Shounen Sunday" with "Yellow Tanabe's" picture on the cover.