I don’t have deep background in fantasy manga, but this first volume is huge on mood and atmosphere and likable for all that. It has a touch of darkness in the art that works to complicate the sweet, innocent feeling of some aspects of the story. The art is really the heart o this, just gorgeous, and there are very few words, so the images move us (slowly) along. A young girl named Shiva lives on the “other side,” in a vacated village with a guardian known only as "Teacher". Teacher is sorta humanoid, and sorta creepy, dark, faintly Edward Gorey and Lovecraft. Teacher protects Shiva, helping her differentiate between the Inside and the Outside. Shiva and Teacher are also forbidden to touch, but they are connected in other ways.
At one point Shiva leaves Teacher’s care to seek out her grandmother, and then we begin to understand just a bit of what is going on, but this is a series, and it is fantasy, possibly dark fantasy, so we have to be patient. There’s some kind of Curse where if an Outsider touches an Insider she becomes a demonic beast. So possibly we have to this to look forward to. Maybe not.
You get some idea of what is going on with the world-making when Teacher reads a story from the child's book, a story that basically provides the bare bones of exposition for what's going on in a general way, but we are still largely in the dark. . . though this is okay, because this is fantasy, and mystery is really what we are all about here.
The subtitle, Siúil a Ruin, is a traditional Irish song, sung from the point of view of a woman lamenting a lover who has embarked on a military career. It is not clear yet what connection this has to the story, but I will just bet it is relevant, in some way. I like the song, so I hope the meaning gets revealed, in some fashion.
Siúil, siúil, siúil a rúin
Siúil go sochair agus siúil go ciúin
Siúil go doras agus éalaigh liom
I wish I were on yonder hill
'Tis there I'd sit and cry my fill
Till every tear would turn a mill
Is go dté tú mo mhúirnín slán
I'll sell my rod, I'll sell my reel
I'll sell my only spinning wheel
To buy my lover a sword of steel
Is go dté tú mo mhúirnín slán
I wish, I wish, I wish in thee
I wish I had my heart again
And they may think I'm not complete
Is go dté tú mo mhúirnín slán
Siúil, siúil, siúil a rúin
Siúil go sochair agus siúil go ciúin
Siúil go doras agus éalaigh liom
Is go dté tú mo mhúirnín slán
So in general, it's a kind of longing for restoration/reconciliation/healing. So I am quite enticed by this tale, and a little worried for Shiva for various reasons. Am I worried Teacher may betray her? Somewhat, yes. But my hope is that the spark of connection/protection we see will deepen. I suspect over time we'll find out how Teacher got to the other side, and what the ominous sense of danger seems to be about. We’ll see.