Gomi Sukiru [Suteru] ga [Shushasentaku] ni Kakusei Shitanode, Saikou Nando no Dai Meikyuu wo Kanzen Koryaku Suru ~Munouda to Pati wo Tsuihosareta Sho…

[MangaDex]

 

[ultraleaf]

 

[lesseffective]

I was so confused by the particular chain of events -- Lumine remarks that his knife is new, and that she needs a new staff. So they go to the weapon store so they can buy her a staff, and him...a knife?