Volume 1 - Intrigued and left with too many questions by the anime, I decided to read this series, and just finished the first volume, which was quite good all in all. As I had sort of hoped, the gaps and vague bits in the anime were mostly due to the fact that the necessary context was Yuki's thoughts, which unsurprisingly weren't included in the adaptation. And as I suspected, the anime began with the first half of the first volume, then ended with the second half, with the middle filled out with games from later volumes, which is a lot of why the timeline was so odd. And that also means that some events that were only briefly mentioned then glossed over should have a lot more context when I get to them in their proper order in the later volumes of the LNs.