Ketsuekigata-kun! Featuring Yuri & Nasuno

Ketsuekigata-kun! began as a webcomic series by the South Korean artist Real Crazy Man, which humorously explores the concept of blood type personality theory—a popular cultural touchstone in East Asia. The project was adapted into an anime series by studio feel. in 2013, aiming to distill the creator's lighthearted observations into a fast-paced, episodic format. The inclusion of Yuri and Nasuno serves as a playful crossover with the Teekyu franchise, integrating the distinct, high-energy character dynamics of the latter into the structured, quirky taxonomy of the blood type theory.

The production design reflects a minimalist, direct approach to character animation, prioritizing comedic timing and dialogue over complex visual sequences. By pairing the quirky traits associated with specific blood types with the established personalities from the Teekyu universe, the special caters to a niche audience interested in character-driven humor. It received a modest reception primarily among fans of the original webcomic and the Teekyu anime, serving as an experimental expansion of both properties through the lens of character-based personality stereotypes.