After school, play at Hoshizora Kissa to solve mysteries / Yuka Sebashi / Nu Yukimaru

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

Usui Toya, a high school student who loves a Japanese literature library / planetarium, is invited to join the "Hoshizora Tantei" (Star Sky Detective) after school. One day, he solved a "puzzle that has been passed down in school" given by his classmate Ryo Kiriyama. They are invited to join the "Hoshizora Tantei" (Star Sky Detective) where they play to solve the puzzle after school. Their activities are based in 『 Hoshizora Kissa 』, "a space that combines a planetarium and a coffee shop with a high ceiling, a smooth wall, a moist night sky and the stars that decorate it as if a jewelry box is turned upside down." The stage is West Tokyo. The planetarium shines on it, and while they solve the daily mysteries related to the anecdotes of constellations, they face a big mystery that surrounds themselves?