Pretty nice exploration of what could have happened right after Impossible Spell Card.
Seija's always been one of the most interesting Touhou characters to me. She's been created purely antagonistic and unfriendly, yet that doesn't keep fans from writing her being a "good influence" at times while keeping her (rather) true to her character.
So to me, it's so great to see how Seija interacts with people in this game. She's her usual rebellious but kinda-inspiring self, and that's a really great contrast against the two weaker-willed girls on this game's routes. In the end they're all people, with their own personal problems, trying to find their way. And I find this game's message beautiful.
Pretty great writing, and all the illustrations and arranges, that was done within the allocated 2 weeks? This is seriously impressive!