I felt that Kingdom works were a bit lacking so I I'd scour Pixiv. I don't speak Japanese so I just machine translated the title.

https://www.pixiv.net/en/artworks/53007130

2014年冬コミ発行の信漂コピー本です。完売してだいぶ経ったのでupに踏みきりました。
信漂はダムの原点を感じさせてくれるCPなので、またいつか何らかの形で漫画にしたいなぁと思っています。
※コピー本に関しては完売後半年以上経過したらupすることがありますが、オフ本の場合はwebへのupは無しです。無くなった本に関して御要望があればそのうちブ厚い再録が出るかもですが…

(machine translated)
This is a Shinboku copy book published in Winter 2014. It's been a while since it was sold out, so I decided to upload it.
Shinryo is a CP that makes you feel the origin of Dam, so I would like to make it into a manga in some form someday.
*Copy books may be uploaded after 6 months or more after they are sold out, but offline books will not be uploaded to the web. If there is a request for the missing book, I may soon be able to make a thick reprint of it...