Shuujin to Kamihikouki: Shounen Paradox

The narrative begins on April 21st, as the protagonist recounts events. Identified only as prisoner number 420, his real name remains unknown, as others refer to him by his number. He expresses negative views about the concept of "happy ends" and the world itself. Guided to his cell by Kaito, known as Kaimural, he finds a blanket and ceramic walls. In the cell, two new characters, Rythm Garcha and Shazna Ivory, attempt to harm him, causing him visible distress and prompting him to cry.