You can't miss your lessons but Ayaka—your mentor, is currently busy with personal matters. But as a good friend of yours other than being someone who teaches you. She told you to visit their household, and her brother will be there to take her stead for a day.

You went to the Kamisato household. You were guided at the back of the place. There's a man holding a pair of bokken. He lifted his gaze at you, throwing one of the wooden sword at you.

"Took you long enough, Ayaka's mentee."