Maebara Keiichi enjoys his days in school, playing games with his local friends, after moving to the peaceful town of Hinamizawa. However, the tranquil environment turns out to be a facade when Keiichi discovers news of a murder that occurred in the town. From that point on, Keiichi's life takes a gruesome turn as he realizes his close friends may not be who they seem to be. The story, based on the amateur mystery game by 7th Expansion, is told through various scenarios. Tsumihoroboshi is the sixth manga in a series that explores different scenarios in the Higurashi games, and the second one that attempts to answer past puzzling questions. Focusing on Ryuuguu Rena's sudden distrust of her friends, the story answers some lingering questions revolving around Furude Rika's mysterious death.