Chara is the playable character and main protagonist of Underswap. After Chara falls into the Underground, they embark on a journey to return to the surface. Chara is the last of the eight humans to fall into the Underground after travelling to Mt. Ebott. Chara is not the "fallen human" named at the beginning of the game. Chara's name is only revealed in the True Pacifist Route.
Chara is a human child who wears a striped lime and cream shirt, red-brown pants, and red-brown shoes. They have medium-length straight brown hair with short bangs. Just like the first human, they have an ambiguous gender.
Chara's personality is ambiguous, allowing the player to project their personality onto Chara. Chara speaks to NPCs throughout the game, but the exact dialogue is not shown. NPCs dialogue boxes display "..." to show that the NPC is listening to Chara, and some NPCs respond to questions that Chara asks.
Depending on their actions, players can interpret Chara as merciful or merciless. Some NPCs emphasize Chara's kindness, understanding, and grace in the epilogue. Chara is obedient and only disallows player input when they follow someone else's instructions, such as when Papyrus tells them to hide behind the conveniently-shaped lamp.
Chara's determination grants the power to SAVE and heal at SAVE points. The SAVE file can be reloaded to repeat events that occur after it, but NPCs' memories are not completely erased unless a True Reset occurs. This power emerged when Chara first awoke in the Ruins.
Temmie attempts to kill Chara after she pretends to offer honest advice. Asgore intervenes, hits Temmie with fire magic, and serves as a guide to the Ruins. At the end of a long room, Asgore asks Chara to wait for her to return and states that he has errands to do. To be safe, Asgore gives Chara a cell phone to call him with.
Chara travels through the remaining puzzles in the Ruins and eventually arrives at Asgore's home. They ask Asgore "how to exit the RUINS," which prompts Asgore to destroy the Ruins's exit. Asgore then battles Chara because he wants them to prove that they can survive outside of the Ruins.
Alphys, the head of the Royal Guard, pursues Chara throughout Waterfall. Monster Kid often saves Chara from Alphys by accident because they are so excited to see Alphys in action. After a chase scene, Alphys destroys a bridge that Chara is standing on, and Chara falls into the garbage dump. Before they get up, they recall a memory from the first human. In the garbage dump, Mad Dummy battles Chara because Chara mistreated their cousin, Dummy, in the Ruins. At the end of Waterfall, Alphys battles Chara after she gives an abridged monologue atop a crag.
After entering Hotland, Chara enters a lab and meets Undyne and Napstaton. Undyne tells Chara that she is not a bad guy, and Nastaton interrupts them with a quiz show. Undyne gives Chara an upgraded cell phone after the quiz show concludes, and she says that she will guide Chara through Hotland and the CORE. Before his battle at the end of the CORE, Napstaton reveals that Undyne had created all of the traps in Hotland in an attempt to endear herself to Chara. He then transforms into Napstaton EX and battles Chara.
While passing through New Home, the capital of the Underground, Chara learns the story of Toriel and Asgore's children from passing monsters. Then, Papyrus judges Chara in the final corridor and explains the meaning of LOVE and EXP. He also emphasizes Chara's importance in the fate of the world.
Chara enters the Throne Room and finds Toriel, who tries to make small talk, only to realize their fated confrontation. The two walk to the Barrier and Toriel gives Chara one last opportunity to leave before fighting.
Just before the fight, Toriel shows the six collected human SOULs, preparing the containment process after the battle. Right before the fight starts, Toriel destroys the MERCY button, making it impossible to spare or flee. However, at the fight's conclusion, Chara can explicitly choose whether to spare or kill Toriel. Regardless of the choice made, Temmie appears, destroys Toriel's SOUL and takes the human SOULs. The game then abruptly closes.
After reopening the game, Chara finds that Temmie has saved her own game over the SAVE file, having gained the power to do so with the stolen human SOULs. Loading Temmie's game, Chara confronts a powered up Temmie and defiantly steps forward, entering an initially hopeless battle with him.
After Chara calls for help several times, the stolen SOULs begin to revolt: first, they heal Chara, and then they weaken Temmie, leaving her vulnerable to destruction. After reducing her HP to 0 and listening to her monologue, the SOULs remove Temmie's ability to SAVE or LOAD. After this, the SOULs leave Chara and Temmie alone. At this point, there is an option to kill or spare a weakened Temmie before leaving the Underground, return to the surface, and end their journey.
After leaving the Underground, Chara receives a call from Papyrus, who leaves a message about what happened to the Underground after Toriel died. This varies based on what monsters were killed and what friendships were completed.
True Pacifist Route
To complete the True Pacifist Route, Chara must have first completed the Neutral Route.
If Chara has completed the Neutral Route without gaining any EXP or LV (i.e. without killing anyone), it is possible to backtrack in the existing SAVE file to complete any missing friendships, then achieve the True Pacifist ending.
If Chara acquires any EXP or LV, they have to reset the game to reach the True Pacifist Ending.
While Chara befriends many of the monsters in the Underground, only the Alphys, Sans, and Undyne friendships are necessary to achieve the True Pacifist Ending.
Chara gains Asgore's friendship by sparing him, but he does not make another appearance until the end of the route.
Chara gains Sans's friendship by visiting him at his home and hanging out or dating him.
Hapstablook can be befriended by smiling at them in the Ruins, and hanging out with them at their house.
If Chara chooses to give Alphys some water after being pursued, Alphys can be befriended. Otherwise, a reset is needed to achieve Alphys's trust and friendship. Chara visits Alphys with Sans's help, and Alphys gets "revenge" by trying to befriend Chara and become "besties", setting her house on fire in the process. She tries to fight Chara to regain honor but realizes that Chara is a "wimpy loser with a big heart" just like Toriel and decides to be friends.
Napstaton can be befriended by sparing him, which can be done by getting his ratings to 12000 (10000 if his arms and legs have fallen off) in his battle at the end of the CORE.
Alphys, having been encouraged to send a love letter to Undyne, gives the letter to Chara, who delivers it to Undyne. This results in a date sequence with Undyne in which she and Alphys realize their feelings for each other and Undyne begins to come to terms with her past mistakes.
After befriending Undyne, Sans recommends traveling to Undyne's lab. In the lab, there is a letter on the floor that, when picked up, reads a monologue and the instructions needed to proceed to learn "the truth." Walking through the bathroom door reveals an elevator which goes down to the True Lab after a malfunction.
Chara proceeds to explore the True Lab and along the way learns of Undyne's failed experiments (amalgamates) with determination and also about the origin of Temmie. After exploring the True Lab and talking to Undyne, she gains the confidence to reveal the truth about her experiments to the rest of the Underground. While attempting to leave, Chara receives a phone call in the elevator from an unknown voice. The elevator immediately and forcibly brings Chara to New Home.
After returning to the throne room and confronting Toriel again, the pre-fight dialogue is interrupted by Asgore, who stops Toriel from fighting Chara. Asgore is immediately followed by the other main characters who encourage everyone to get along. However, in a surprise twist, Sans reveals that it was "a little beast" who told him to bring everyone there.
Immediately after this reveal, Temmie appears, having stolen the SOULs of the six other humans. He attempts to kill Chara, but Alphys, Asgore, Undyne, and Sans use their power to block Temmie's finishing blows. Directly after this, all of the Underground's monsters arrive to encourage Chara in the fight against Temmie. However, Temmie reveals that this has what she wanted all along so that she could absorb the souls of all the monsters in the Underground along with the six human SOULs.
Due to the immense power gained from the six human SOULs and all of the monster SOULs, Temmie can transform into her true form, and just before the fight begins it is revealed that she is actually Asriel Dreemurr.
During this fight, Chara is invincible, and any hit that would normally result in death instead causes the heart to split, but reform back together. The first time this happens, it is accompanied by the text "but it refused." After stalling for long enough, Asriel transforms again. At this point, Chara can feel the souls of Asgore, Toriel, Undyne, Alphys, Sans, and Papyrus within Asriel and the ACT button changes to SAVE to represent the act of freeing everyone's souls. This is accomplished by completing a short sequence of ACT options to restore the memory of each lost soul after selecting the said lost soul of a chosen character.
After saving each monster, Chara realizes that there is still one more person to save. After choosing to save "someone else," the memories of the first human (who strongly resembled Chara) begin to play in a slideshow style. After this, Asriel starts to feel the love the monsters feel for Chara through the souls he has absorbed, and slowly loses the will to fight as he is overcome with his fear of dying alone.
After reverting to his child form, Asriel learns Chara's name. He apologizes for hurting everybody, and Chara can choose to forgive or not forgive Asriel. Regardless of the choice made, Asriel destroys the barrier using the power of all of the SOULs before releasing them. Knowing that he will turn back to a beast without the power of the SOULs to sustain him, Asriel says one last goodbye to Chara before leaving. At this point, there is a choice to hug Asriel or do nothing.
After the scene with Asriel finishes, Chara wakes up in front of Asgore, Papyrus, Sans, Alphys, Undyne and Toriel. While the monsters remember little about Temmie and nothing about his incarnation as Asriel, they do know Chara's name. At this point, Chara can backtrack through the Underground and talk to the other monsters, before returning the surface.
Backtracking to the very first room in Undertale reveals that Asriel is tending to the flowers. Asriel asks about Chara's desire to travel up Mt. Ebott in the first place. Receiving no answer, Asriel lists off foolishness or fate as possible motives, but comes to the conclusion that "only you (Chara) know the answer."
After passing through the final door to the surface, Chara leaves the Underground with friends. Toriel offers Chara the chance to be the monsters' ambassador to the humans. Most of the main monster cast then leave, except for Asgore, who asks about Chara's plans. At this point, Chara can choose to stay with Asgore or to go elsewhere.
After choosing to stay with Asgore, the ending scene shows Asgore bringing a slice of pie to Chara's bedroom. Otherwise, if Chara has "places to go," the game ends with a group photo of the main monster cast with Chara in the middle.
- For further information, see Frisk.
- Naming the fallen human "Chara" initiates Hard Mode.
- Chara and Temmie are the only two known to be able to SAVE, LOAD, and reset their SAVE FILE.
- Out of all the humans that fell to the Underground, Chara is the only human to survive the adventure.
- When hugging Monster Kid, stripes appear on Chara's shirt sleeves.