2026 Reading Challenge

Join the Goodreads Author Program

Are you Alpa, author of the books below?
暗黒デルタ 1 [Ankoku Delta 1] by Alpa 暗黒デルタ 2 [Ankoku Delta 2] by Alpa 暗黒デルタ 3 [Ankoku Delta 3] by Alpa 暗黒デルタ 4 [Ankoku Delta 4] by Alpa 暗黒デルタ 5 [Ankoku Delta 5] by Alpa


To join the author program as Alpa, you will first need to sign in to Goodreads. Then navigate back to this page to apply.


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