Stella Fennette, his second Kendo student, should've visited that dukedom to have her identity as an Arcanist verified.
After all, she received her Arcana through his imperfect Ancient Arcane Stone and she's not listed in the Kingdom who attended the Arcana Bestowal Ceremony.
'I wonder how strong she has gotten by now…'
Reiji started thinking about her… Stella isn't a simple practitioner as well since she's mastering the nittouryuu or the two-sword school. It has complicated sword techniques that require good body coordination…
Now that she doesn't have a teacher watching over her, it would be quite difficult to progress unless she would always bring herself into battle.
Of course, Reiji also wonders how she would feel now that her home country would fight against the Dukedom…
After pondering about this, Reiji suddenly recalled an important piece of information.