Tadelsa

Tadelsa is the het ship between Tadashi Hamada and Elsa from the Disney fandom.

Canon
As Tadashi and Elsa are from different series, they have never met in canon. Even though a few Disney crossover video games could have the two cross paths with one another or get them added in the same team, by the player's choice.

Both Elsa and Tadashi are older sibling who lost their parents. Tadashi's science and Elsa's magic is what allowed them to create and give life to Baymax and Olaf. Elsa used to make it snow inside for her sister, before she lost control of her magics until Anna helps Elsa with them, while Tadashi had gone through something with the unique he invented. Since both the small machine and Elsa's magic had caused the two and their siblings some trouble. Their main antagonists presented themselves as a friend to Elsa and Tadashi, which is why Elsa placed Anna's care in Hans' hands while Tadashi tried to save Callaghan.

Fanon
Tadelsa is considered to be a popular ship in the Frozen/Big Hero 6 crossover fandom. Since Tadashi is a scientist he would probably be fascinated by Elsa's abilities and may want to learn more about them, leading to Elsa having a better understanding and control over them. Fans also see Elsa being drawn to Tadashi's caring nature as he helps her to see that her powers don't make her a monster, as well as the two bonding over the love and struggles they have with their younger siblings. Since some fans include Anna and Hiro, as well as Olaf and Baymax, in group Tadelsa fanwork.

There are times where the ship is set in Arendelle, but are mostly set in San Fransokyo. A few manips also have Elsa in Go Go's clothing or a BH6 armour suit. The AU's typically have Tadashi part of BH6, while Elsa is typically a civilian girl. The fanon of Tadashi having power over fire has also featured in the ship, since Elsa has ice magic and it isn't uncommon to ship couples of fire and ice together. In a few versions of a Frozen AU, with the BH6 characters, Tadashi is sometimes seen as Elsa, while in Big Hero 6 AU with Frozen characters Elsa is sometimes seen as Tadashi Hamada. Because there was a large number of Frozen Easter Eggs and references in Big Hero 6, a few fans like to believe that their films might be linked in some way.

On AO3, the ship only has 14 fanfics while fanfiction.net has 42 with only 17 placed under pairing. Its fanbase on Deviantart, however, it a bit more larger than it is on the two fanfic websites.

Fandom
FAN FICTION
 * Tadashi/Elsa tag on FanFiction.net
 * Tadashi/Elsa tag on FanFiction.net

DEVIANTART

TUMBLR

WIKIS
 * on

Trivia

 * Elsa makes a appearance in Kingdom Hearts III, while Tadashi was only mentioned in it.
 * A few Frozen Easter eggs have been seen in the Big Hero 6 film.
 * In "The Present", a reference to the Frozen song, "Do You Want to Build a Snowman?", was made when Honey Lemon asks the villain if they want to build a snowman.