The response song to [[kokoro (vocaloid)|Kokoro]], by Toraboruta-P (トラボルタP) using [[Kamui Gakupo]]'s vocals. It's from the perspective of the scientist who created the robot.

h4. by Toraboruta-P

* [[kokoro (vocaloid)|Kokoro]]
* [[soratobazu (vocaloid)|Soratobazu]]
* [[toeto_(vocaloid)|Toeto]]
* [[pink_spider_(vocaloid)|Pink Spider]]
sayonara arigatou (vocaloid)