[Trainer of Greenhorns] Tanngrisnir
|Relation||From Others||To Others|
| → Kengo|
[Lightning Delivery] Tanngrisnir
|Summon||I...no, excuse me.* I am Tanngrisnir, a new rookie teacher of the Santa School reindeer course. My leg may be injured, but I can still run.|
|Beginning of Battle||Let's run, more, more, to a brighter future!|
|Move||I'll gauge the distance...now.|
|Attacking||I will kick you.|
|Skill Activation||Keep your eyes on this Yule Goat.|
|Hit (major)||My leg...!|
|Charge||Roll, thunder wheel, ever forward! Thunderous Bonecrusher, Winner Tangiost!|
|Victory||It is our team's victory. Well, I managed to stay standing somehow.|
|KO'd||I can't keep going... no wonder... they call me a meatheaded fool...|
- He refers to himself with a rougher "ore" pronoun before correcting to a more polite "watashi".
- Tanngrisnir is based on one of the two goats that pulled the god Thor's chariot in Norse mythology; Tanngrisnir (Old Norse "teeth-barer") and Tanngnjóstr (Old Norse "teeth-grinder").
- This coincides with his sacred artifact which are the boots that give him a speed boost and appear to manifest itself as blue chariot wheels to the side of his feet.
- His charge attack "Winner Tangiost (Thunderous Bonecrusher)" is a reference to both Thor, the Norse god of thunder, and Tanngjóstr, which is often modernly anglicized as Tanngiost.
- The symbol represented on each of the shoulders of his waistcoat is called the Triquetra, or the Trinity Knot. It symbolizes a lack of beginning or end, eternal life, represented by a continuous line looping around itself. The symbol was originally Celtic, but due to interaction between Vikings and people of Scotland and Ireland, many Celtic symbols such as the Triquetra were adopted by Norse culture.
- His leg injury may come from the original story, in which Thor would kill and eat his chariot goats when he needed food, then magically revive them from the remaining bones. One day when Thor shared his goats with hungry peasants, one of Tanngrisnir's bones was broken to get to the marrow inside, leaving his leg permanently injured upon revival.