Hello,
You can "display" your characteristic value on your product listing (or module) by recreating it in a Item Custom field
=> From Main HikaShop Configuration, Display dropdown => Custom field
Then, create a new custom field, type Item, where you will list your characteristic value.
On the other side, go to Menus dropdown => Main Menu.
Then edit, your required Item Menu in Products options tab, and Product features display part, switch Custom item fields to Yes.
Note that, the result will only have a display purpose, I mean your customer won't be able to select and add the product in the Cart.
Regards