It has been serialized in Shueisha's seinen manga magazine Weekly Young Jump since September 2018, with its chapters collected in nineteen tankōbon volumes as of January 2025.

As the two grow closer and are slowly exposed to various events within the House, they start to discover a number of dark secrets.

Written and illustrated by the duo Somato (specifically, written and designed by Nori and illustrated by Hisshi),[5][6] Shadows House started in Shueisha's seinen manga magazine Weekly Young Jump on September 6, 2018;[7] the Weekly Young Jump app, YanJan!, distributes a full-color version of the series.

[5] The series is produced by CloverWorks and directed by Kazuki Ōhashi, with scripts written by Toshiya Ōno, character designs by Chizuko Kusakabe, and music composed by Kenichiro Suehiro.

[21] The ending song for the eighth episode is the instrumental "My Perfect World" (私の完璧な世界, Watashi no Kanpeki na Sekai), composed by Suehiro.

Silverman highlighted the relationship between Kate and Emilico, and praised the series for its Victorian-inspired setting and detailed artwork, commenting that it "calls to mind such well-known texts as Snow White and Through the Looking-Glass", also stating that Emilico resembles John Tenniel's illustrations of Alice from Alice's Adventures in Wonderland.

He praised the relationship between Kate and Emilico—"explored by great artistic expression due to the nature of the Shadows".

[42] Reviewing the first volume, Danica Davidson of Otaku USA lauded the series for its setting and artwork, commenting that it "does a good job of showing us a world gone by."

Davidson also praised the "own unique blend" between the "wholesome feeling" of the older clothing, living styles, and characters, and the series' own "sinister and creepy" premise, ultimately calling the first volume "an interesting start.

Moody finally commented: "The first two seasons of Shadows House may have been mostly stage-setting, but I'm eager to see the rest of this saga unfold.