I May Be a Guild Receptionist, but I’ll Solo Any Boss to Clock Out on Time, Vol. 2 (light novel) - Mato Kousaka - Bog

Iffole¿s annual Centennial Festival is right around the corner, and Alina is hellbent on participating this year instead of doing overtime like she did during the last two festivals. But her aspirations are jeopardized when the receptionist counter is swarmed with adventurers just a few days before the festival! It turns out they¿re all convinced that anyone who clears a secret quest will get a powerful skill. So what¿s a girl to do? Simple¿give the creator of that baseless rumor a beatdown!