At Meisei Academy in Tokyo, the reward for solving puzzles must be a delicious dessert.
Lu Qi, a transfer student from China, firmly believes that logic can measure everything. He runs a "detective agency" where commission fees are paid with desserts.
Mizuhara Riune, a class committee member who is good at reading people's hearts, unexpectedly became his exclusive "Watson".
The unringed wind chimes under the cherry blossom trees, the sound of the piano in the music room in the middle of the night, the missing steps of the old school building... They solved every small and heart-warming mystery on the campus.
Use the calmest reasoning to measure the gentlest world. The end of every case has just the right amount of sweetness.
"So, next puzzle, which snack would you like to trade for?"
Intention: Use the ruler of logic to measure the thickness of emotion, so that every arrival of the truth becomes a warm healing.
