A doujin game by Desunoya based on the Touhou Project series.

Through Alice and Patchouli's "Bulletproof is Brainstorming Project," Marisa's consciousness was knocked into the world of the book where she can play a puzzle to collect the stars of Shiawase.

When she finishes all these puzzles, will Marisa really become a bullet trainer?

Is Marisa, who is sleeping right in front of them, safe in many ways!

Will Marisa be a little happier!