Ninja Hattori-kun Episode 671

👀 SPOILER-FREE SUMMARY

This late-run entry of Ninja Hattori-kun delivers exactly what long-time fans expect from the series at its most playful: a classic rivalry gag episode built around Kemumaki and Kio's scheming backfiring spectacularly. The premise centers on judo mat-flipping ninja techniques, setting up a physical comedy scenario where trickery and one-upmanship drive the laughs. Expect the signature lighthearted tone with Hattori turning his rivals' own schemes against them in satisfying fashion. The pacing follows the show's tried-and-true episodic formula — setup, escalation, comedic payoff — making it an easy, self-contained watch. No heavy emotional stakes here, just pure slapstick ninja fun with the familiar cast doing what they do best. If you enjoy the Hattori-versus-Kemumaki dynamic, this episode leans into it fully.