Chiyoko Chiyoko was a godlike , super - evolved combination of four alien species : human , TARDIS , Shasarak and Axos . Chiyoko was first seen in an alliance with Axos , who had come to 21st century Tokyo to set up a fake company , which they called the Rising Sun Corporation . One of the corporation ' s " products " was a drink called " Goruda " . Goruda was advertised as a brain tonic , but its real purpose was to transform those who drank a lot of it into Axons . In its public face of " Mr Kin " , Axos passed off Chiyoko as " his " ward and advisor . When Axos encountered resistance from the Eleventh Doctor and his allies , Chiyoko betrayed it , freeing the Doctor ' s companion , Amy Pond , and Major Harada of UNIT . When the Doctor defeated Axos , the dying gestalt claimed that Chiyoko had promised it the Earth . Chiyoko replied by saying the deception was necessary " for a new life to begin . " ( COMIC : " The Golden Ones " ) Chiyoko somehow went to Paris , France in 1858 , where she watched the Doctor and Amy depart . ( COMIC : " The Screams of Death " ) It turned out that Chiyoko was an evolved amalgamation of the Doctor ' s TARDIS , Axos , the Shasarak , Konami , Cosette and Margaret Webster . She had what looked like a galaxy on her chest . She destroyed an army of plague robots . She could see through and travel through time through her TARDIS - like qualities . ( COMIC : " Apotheosis " ) After leaving the Doctor and Amy , Chiyoko travelled through time . She freed Axos from the time loop , sent Valdemar to 19th century France and transported the Vorlax Regeneration Drone from 4688 to 2011 , setting in motion the events that would lead to her own creation . She went thousands of years into Earth ' s future and instigated a war between the human s and the Galatean s . She was worshiped as a god by both sides . When the Doctor and Amy failed to stop a bomb from destroying the Earth , Chiyoko appeared to them and told them the purpose of the war was to see which race would be the victor . She decided that the Galateans would be allowed to continue and the humans would have to ' go away ' . She left Earth moments before it was destroyed . She later founded the Museum of Lost Opportunities to commemorate the Earth and the human race and to remind herself why the Humans deserved to die . She was present at the activation of the first Galateans . She put the Doctor , Amy and Alan Turing out of sync with normal time to stop them from interfering . Keltor Jacobs tried to shut down the Galateans . She killed him . She took the Doctor , Amy and Alan to the Planet Kepler IV a thousand years later to show them the extent of the war between the Humans and the Galateans . Next , she took them back to Earth on the day of its destruction , hoping they would die . However , they got themselves Time Scoop ed back to the Museum of Lost Opportunities . Chiyoko followed them there and deactivated the Brontë sisters . Before she could kill the Doctor and Amy , the Doctor used the Time Scoop to bring Cosette , Konami and Margaret ( from points in their time streams before they were absorbed by the TARDIS ) to the Museum . This endangered Chiyoko ' s existence and greatly limited her powers . The Doctor tried to convince Chiyoko to undo her existence and free the lifeforms she was made of . Chiyoko , who was very regretful , did so . Before she died , the Doctor took Chiyoko back in time . With Alan ' s help , he prevented the Galatean rebellion . He uploaded Chiyoko ' s mind into a Galatean body , allowing her to live safely . ( COMIC : " The Child of Time " ) Later , she apparently joined forces with Josiah W . Dogbolter in an attempt to regain access to dimensional travel . However , it turned out it was actually Frobisher , who used her form as a disguise to distract Dogbolter while the Twelfth Doctor destroyed Dogbolter ' s corporation . ( COMIC : " The Stockbridge Showdown " ) Chiyoko lived with Alan and Alan ' s partner Ranesh on the Galatean lunar colony Athenia . After the Children of Turing began to see Alan as a messiah , he left the colony to work in quiet , giving his whereabouts to Chiyoko but only for emergencies . Two years later , when the Twelfth Doctor and Bill Potts came to Athenia to ask for Alan ' s help in translating a mysterious code that had been scratched onto the TARDIS ' doors , Chiyoko was immediately aware of the TARDIS ' appearance . Feeling the essence of Chiyoko ' s " mother " the TARDIS on Bill , Chiyoko had Bill take her to the TARDIS , which Chiyoko could hear was screaming due to the markings on the doors . After reuniting with the Doctor , Chiyoko told him where to find Alan . They found Alan inside a replica of King ' s College , Cambridge on the Moon ' s surface . The code on the TARDIS was part of the Dreamspace - residing Phantom Piper , and Alan breaking it caused the Piper to manifest . The Piper kidnapped Chiyoko and used her mind , along with the centuries of slaughter locked inside , to bring mathematical constructs of soldiers from every war into existence using Block Transfer Computation . Alan stopped the Piper by breaking down the code that made up the Piper , which freed Chiyoko . Alan then came back to live with Ranesh and Chiyoko . ( COMIC : " The Phantom Piper " ) Behind the scenes . " Chiyoko " means " child of forever " or " child of a thousand generations " .