Tachikichi 10-piece Teacup Set

This is a 10-piece set of Tachikichi teacups.
These teacups come in a wide variety of colors.
They are new and unused, having been stored long-term at my parents' home. I am selling them as part of a decluttering effort.
They were opened for inspection and photography.
The outer box had some damage due to age, so they are being sold without the box.
I do not see any specific cracks or stains, but there is something like a scuff mark on the bottom of the red teacup.
Please refer to the photos.
These are used items, so please only consider them if you understand this.

Thank you for looking.