Link: https://www.dlsite.com/books/work/=/product_id/BJ256448/
Title: 交換息子 / Koukan Musuko
Author: 児妻 / Jitsuma
Page count: 202
File size: 172.61MB
Unsure if the older releases were DL版 or scans, since all links are dead. They also seem to be missing some pages. Could someone please upload a more recent version of this? Thank you.

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