For protection. She took it out of the gardening club's shed on the roof the during the first few weeks we were up there. We needed something to keep ourselves safe with when we were taking back the classrooms and the halls.

[ ... this was supposed to be a fun distraction. now it's sad. sorry, you two. HASTY ATTEMPT TO LIGHTEN THE MOOD: ]

But, um-- at this point, I think it's almost like a habit. Sometimes she'll even forget she's carrying it and we'll have to remind her. She goes so red. Yuki-chan even asked her if she was thinking of marrying it at one point and, well. She didn't exactly say no.

[ scandalous. ]

Kurumi says it's something about making it part of her body so she can really master it... but I don't have to tell you that sounds like an excuse.