Rookie (Frisk) history

Frisk grew up on the streets of Capital City. He's had to make his own way in life since he was abandoned at a young age. He grew up hearing stories of Flowey and his friends and despite being rather cowardly, he yearned to be like them one day.

After The barrier was broken and monsters arrived on the surface, the evil Dr. Gaster created his Dominion and began gaining power after his right hand man, Chara, seemingly killed Flowey. Sometime in the six months of the war between the Doctor Dominion and the Resistance, Frisk began working for the Resistance.

He was too afraid to fight on the front lines so he took up watch in the city. When team Chaotix arrived, he observed their organization of the city defenses for a few days. When he considered quitting the fight however, he had to alert the city to an attack from Dr. Gaster and his legion of followers. With Team Chaotix needing help with the defenses of the city, Frisk rushed in, hoping to be of some use. However, they couldn't do anything. When the followers broke through the defenses, Frisk hid, too afraid to fight. When the Chaotix needed to take down the followers battleship however, Frisk saw a way to help without fighting and grabbed a nearby bomb and after lighting it, fired it at the battleship causing enough damage that Dr. Gaster was forced to flee.

Later on, Frisk and his squadron were attacked by Chara, the commander of the Doctor's Dominion, who disposed of his comrades in the squad leaving hims the only one left. Frisk tried to stand against Chara but Chara saw through his facade and wanting to relish his fear, Chara offered to let Frisk live, if he ran away in fear, which he promptly did. he eventually made it to the Resistance HQ and joined the Resistance after a few months in spite of the terrified tension among the population. He was introduced to the members and Undyne, the leader of the resistance, gave him a Burst Wispon.

On his first mission, he helped steal a space shuttle to reach Flowey who turned out to be imprisoned on the Death Egg. After that, he joined the resistance and ended up with the best path to Flowey which led to him being released from imprisonment. After Frisk and Flowey escaped the Death Egg, Frisk tagged along and helped Flowey destroyed Gaster's weapon facility in an attempt to weaken Gaster's forces. After that, he was sent to investigate the Mystic Jungle around the area that Toriel and Flowey had fought Chara. There, he found a Phantom Determination prototype. He also found Alphys and Classic Flowey and brought them to Resistance headquarters.

When Operation Big Wave began, Frisk joined the resistance's attack on Metropolis. However, when Chara turned the fight around with the Phantom Determination he tried to retreat but was met by Chara who tried to intimidate him again. However, Frisk remembered Flowey's encouraging words, and found the courage ti fight Chara. During the fight, Frisk's Phantom Determination prototype gave him some protection against Chara. Once again Chara let Frisk go so he could swelter in fear, knowing that Gaster would crush the resistance in just two days.

After that Frisk joined Flowey on a mission to handle a Metal Flowey replica, after it was taken down, Flowey and Frisk celebrated their win with a fist bump. When they needed to destroy the Phantom Determination's power source in order to weaken the weapon, Frisk provided a distraction for Gaster's followers at Guardian Rock while the resistance destroyed the power source. He then joined the resistance in metropolis only to learn that the Phantom Determination had another power source that was located deep under the Doctor's Dominion. Frisk tried to save Flowey when he was being pulled into Null Space but only ended up getting pulled in as well. However, Flowey and Frisk broke out and rejoined the resistance. After the duo managed to track down Chara and Gaster, the two promptly retreated to the Doctor's Dominion to begin the doctor's doomsday.

Having less than an hour until the Doctor's Doomsday, Frisk and the resistance confronted Gaster's followers at the Doctor's Dominion in an attempt to reach and destroy the Phantom Determination's power source. It was then Gaster had Chara execute his doomsday, using the Phantom Determination to create a sun to drop on the resistance. As the sun slowly fell Frisk's Phantom Determination prototype began to glow and Alphys theorized that they might be able to use it to neutralize the sun. Since the prototype's design only let Frisk use it he made his way to the sun and destroyed it, giving the resistance a fighting chance. After being helped to his feet by Alphys, he joined Flowey in fighting Chara and they defeated Chara for good which resulted in Chara disappearing into thin air. Warned it was not over by Gaster, the duo made their way to the Phantom Determination's power source and destroyed it.

Before they can celebrate their victory though, Gaster reveals that the power source they destroyed was only a decoy and the real Phantom Determination was incorporated into his Death Egg Robot. Frisk, Flowey and Classic Flowey fought and defeated the Death Egg Robot and ensured the resistance's victory against the Doctor's dominion.

In the aftermath of the fight, Frisk bid farewell to classic Flowey who was due to return to his dimension now that the Phantom Determination was destroyed. Frisk and the resistance set out to clean up the mess Gaster had left the world in, afterwards the resistance was disbanded and the heroes went their own ways. Frisk shared one last fist bump with Flowey before he headed off in search for the net adventure.