Asgore

Asgore Dreemurr (/ˈæzɡɔːr ˈdɹiːmər/ AZ-gore DREE-mər)[2] is the King of the Underground and its denizens, monsters. He serves as the secondary antagonist of Undertale, planning to kill seven humans and use their SOULs to break the barrier that traps everyone Underground. However, he is not evil or malicious. Asgore is the ex-husband of Toriel, father of Asriel, adoptive father of the first human, and the penultimate boss of the Neutral Route.

Asgore is a large Boss Monster, and the tallest main character in Undertale. Asgore has two large curved horns, golden-blond mane, golden-blond full beard, white fur, long ears, a snout, and a set of visible fangs. Asgore wears a small, three-pointed crown atop his head, golden pauldrons, a long purple cape that slightly drags along the ground, which he often uses cloak his armored body. Asgore's armor is near-full body, though his feet are unarmored. Distinctly, Asgore's armor has a large chestplate, with a winged crest of the implied "angel" from the Delta Rune emblem, and his tasset visually resembling the triangles of the emblem.

Asgore's weapon in battle is a sharp red trident, adorned with a six-petaled flower at its base.

Asgore is kind, often quiet, yet upbeat. He speaks in southern slang, most notably "howdy" and "golly," similar to Asriel.
Asgore's interests include gardening, humming,[3] making tea,[4] such as Golden Flower tea,[5] going for walks,[6]sparring with Undyne, dressing up as Santa Claus,[7] and puns.[8] He has a sense of humor, as he accepts being called "Fluffybuns" after Toriel accidentally nicknamed him in public.[9] However, he is bad at naming places. Asgore gave the monster cities literal names, such as the first being "Home",[10] and naming their latest city as "New Home."[11] Gerson suggests that Asgore may not be too intelligent, as he states everyone knew Toriel managed governing.[12]
Despite this, monsters respect Asgore as a powerful leader. Many monsters refer to him by his name, or by nickname, and partially by his title. Asgore's name is always fully capitalized, and sometimes in red text,[13] yellow text,[14] or a combination of both.[15] However, he only fights humans to give hope to monsterkind.[16] Asgore feels miserable for the deaths of the six humans, does not want to kill anybody,[17] and feels guilty for declaring war on humanity.[18] This guilt seemingly extends to Asgore destroying the MERCY button, and his pessimism on humans trusting monsterkind.[19]
Asgore lives in the past, and only wants to see his wife and Asriel, even though they have been gone for a long time.[20] He writes the same short positive phrase in his journal every day, presumably to not think about his guilt or his family. However, he seemingly tries to bake Toriel's Butterscotch Pie multiple times, which is one of his favorites.[21]

Before the events of Undertale, King Asgore and Queen Toriel ruled monsterkind. After the war, monsters were sealed in the Underground by humans with the Barrier. Fearful of more attacks, monsters retreated further into the the Ruins, and Asgore named their new city "Home."[10] Toriel and Asgore later had a son, Asriel, and sometime later, adopted the first human, who had fallen into the Ruins.

No longer fearing humans, Asgore, his family, and much of monsterkind moved out of Home and went further into the Underground. Asgore's family and some of monsterkind eventually settled in their new capital, which Asgore named, "New Home."[11] For some time, Asgore and his family lived in Asgore's Home, close to the Barrier. One day, the first human became ill, much to Asgore's dismay. After his children's sudden deaths, Asgore blamed humans and declares war on humanity in a fit of anger. He swore to kill any human that fell into the Underground and planned to use their SOULs to break the Barrier and destroy all humans.[22] Toriel, disgusted with him, left New Home and returned to the Ruins.

Before the protagonist fell into the Underground, W. D. Gaster disappears, and Asgore did not hire a new Royal Scientist for a long time.[23] While Asgore tended to the Golden Flowers, he often also went for walks and interacted with monsters.[6] At unspecified points, six more humans fell, and Asgore saved their SOULs for future use. Eventually, Asgore becomes impressed by Alphys, and hires her as the new Royal Scientist.[24] Asgore requested Alphys to research on SOULs in an attempt to break the Barrier.[25]

Though puzzles were meant as a precaution versus humans, Asgore eventually wished to correct older mandates to make the Underground safer on multiple occasions. This includes the spikes from Snowdin Forest's puzzles[26] and the precarious bridges in Waterfall.[27]