The mistake of a one night stand after being struck by slope magic.
But not him... it just can't be him...
1 Volume (Complete)

The pacing was all over the place and the characters were pretty flat. It felt like the author had some cool ideas but didn't really have a big picture in mind, so the plot ended up feeling a bit disconnected.
The art is so nice and fluffy in this. I like the progression of the two's relationship and the way their personalities interact. I wish there were a bit more of the titular "slope magic" though, because I kept expecting more snowboarding/skiing "heart-racing" moments.
The story really has a reflective feeling. Lots of flashbacks, outsider POV. I like it. Based on the mangaka's other work, I think they're fond of this style of storytelling. I think it works pretty well in this series.
The narrative jumps around and is difficult to follow. By chapter 3 it's improved with time reference panels.
However, they keep adding new characters and shifting focus away from the main couple in a way that in theory progresses the plot but mostly feels like a distraction before the plot and main characters can even take shape.
The idea and art is there, but it would take a skilled editor to shape it into something worth reading.