In Nekoji Academy, there was an unspoken rule that everyone must follow. No one should stay in the school after the last bell rings… it was the signal that the Cat’s Hour started.

Hikari Terushima, a transfer student, broke the rule obliviously and discovered something that she shouldn’t have. After that, she was assigned to work with the student council as its secretary.

It should be an easy job… only if it was just a normal student council. What awaited her was five student council officers, each with their own personalities and eccentricities, but the strangest thing was… they have cat ears and tails that only Hikari can see!

What sort of life awaits Hikari in her new school? With the responsibilities and duties on her hands, will she be able to have the spring of her youth?