"Nah," she says guilelessly, recovering her irrepressible cheerfulness after that moment of self-castigation. "Kendo clubs use bokuto or shinai when they practice! I usually just lie and say I'm part of a regional kenjutsu team when someone asks, but actually, there isn't one in this region."

Raimei, that probably dismantles your lie if you go around telling people it's a lie... But that's the sort of direct person she is.

"Truthfully, this is a family heirloom, so I don't feel right leaving it at home." Still a pretty weird explanation, she knows, but true and personal enough that most people leave her alone about it.