Mejaz - Regulus in the World - Ch. 7.2 - Estranged

[MangaDex]

 

[Kaarme]

She didn't notice she's one ring short when taking back her stuff, huh? It must have been just a gashapon toy ring, not too important.

 

[penguinslovesnow]

Plot induced stupidity. That's the only reason that could explain why she wouldn't notice her ring missing considering how smart she is.