Asa no Zainin to Mujintou no Kyoushitsu

is a Japanese light novel series written by Ren Sudou, with illustrations by Kayahara. The series began publication on June 10, 2022 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
A world where future measurement by machines is obligatory. The boy, Yuji Yuuhi, was determined to be a sinner in the future "Sinner of Tomorrow" and was forced to participate in the isolation rehabilitation program on the uninhabited island "Tetsumadojima". Twelve "Sinner of Tomorrow" collected. Its mission is only one. To prove your future innocence through a year of communal living. However, as he spend his days, the darkness of the hearts hidden in boys and girls gradually begins to be revealed ...!? Madness, hardship, loneliness--. Is the future that twists to the end atonement? Or is it despair? A shocking school climb ensemble presented by Ren Sudou of "Tobakushi wa Inoranai"!