Rin forgot about this important appointment thing, and it completely slipped her mind. The reason for this was Dev.
Yes, although he is not present here, Dev's absence is still affecting Alex's life.
Every time Rin performed any ritual on this campus, her teacher, Dev, was present to carefully guide her, eliminating the need for her to make appointments for the ritual ground. But currently, Dev is out of the Nalanda Academy so he could attend to some of his important work.
When Luna heard that her junior Rin had forgotten about this aspect, she put her palm over her mouth, hiding her smug teasing smile, and half-chuckling, she said, "Ah, Rin, it seems the journey has taken some toll on you."
"Yeah, yeah," Rin shrugged her off,
I
"Is the appointment really important?" Alex asked, distracting Rin from her thought process. He didn't know any workings of this campus; he was curious to know, but the dizziness he was feeling was stronger.