| Noriyasu Seta | |
| |
| Aliases | |
| Birth Date | |
| Age | 28 (Chapter 25) 30 (Chapter 89) 34 (Chapter 123) |
| Zodiac Sign | {{{zodiac}}} |
| Blood Type | {{{blood}}} |
| Residence | His Van |
| Affiliations | |
| Family | Sarah McDougal (Adopted Daughter), Haruka (Wife; Manga Only) |
| Occupation | Archeologist |
| Likes | Ruins |
| Dislikes | |
| Voiced by | Kirk Thornton |
| Seiyū | Yasunori Matsumoto |
| First Appearance | Chapter 25 (Manga) |
- "Hmmm, how thrilling. That reminds me of our past perils...."
- —Seta while he, Haruka and Keitaro hides from the Molmol air force
Noriyasu Seta is a Tokyo University graduate and professor who specializes in archaeology, appearing to be a parody of Indiana Jones. Like Keitaro, he was a third-year ronin. He's clumsy - especially with women, a terrible driver (his arrival often heralded by his van crashing down from the sky), and an exceptionally skilled martial artist, all partly due to his complete lack of self-preservation. Seta spends a good deal of his time traveling the world on one expedition or another. His goal seems to be to find evidence of the ancient turtle civilization that once flourished throughout east Asia.
Seta is also something of an adventurer, and possesses a van that shares his indestructible nature, and apparently has a submarine mode, as well as an Aeroplane with the registration number "SETA02". In the past, Haruka had a major crush on him, though he seemed oblivious. They went on many expeditions together. Along with them on the expeditions was Sara's mother, an American that looked remarkably like Naru, who later died. Her last request was that Seta marry Haruka. This wish was granted, and Haruka and Seta married at the ruins of Todai, capital of the Turtle civilization. Seta is Sara's guardian, and she refers to him as "papa."
Seta is most probably a practitioner of Jeet Kune Do. In most situations, his fighting stance is almost an exact mirror of Bruce Lee's proprietary stance. Also, in the Anime, Sara even uses the term "Jeet Kune Do" in reference to her father's fighting technique.
In the second series, after the timeskip, Seta had to use a backbrace due to the fact when he unintentionally insulted Keitaro, Keitaro kicked him in the back with a pair of cleats and also nearly tore out his eye. Seta mentioned that it had something to do with calling keitaro a coward about how he felt toward Naru. He also said that while Haruka fights until her enemy is knocked out, he mentioned that keitaro will only stop is either his enemy is ripped to shreads or he is knocked out. This was enough to actually scare haruka significantly as she never pictured Keitaro to be a merciless fighter.