Shiritsu St. Cattlya Shougakkou
St. Cattlya Private Primary School·私立聖カトレア小学校
A former teacher at St. Cattlya Kindergarten leaves to pursue a position at a high school. After receiving a letter from Yamasaki-sensei, they question if it might be a love letter. The message contains clues leading them to St. Cattlya Primary instead. This unexpected turn forces them to return to teach their former students once more, rather than the high school girls they had hoped to instruct.