I've never read this pairing before, but I wondered about them ;)
They work pretty well together as you showed with this story and I really like it.
The idea with the ice cream and tasting words was very original, but I think it suits Nino a lot!
The customers are cutely written and I love that you came up with how their names tasted like^^ I like Jun's "watermelon" a lot!

Thanks for this amusing story and the sweet pairing. There should be more Nino/Ohkura stories around!