Ok, not really butter, but butter candy. But who cares, Nagi is awesome no matter what.
These things were made from the butter of cows that “could have” grazed on some sacred grass. So obviously could be they are good.
Hopefully one day we can have a Tsugumi one since she is just as awesome.
Right now, they are on sale at Gamers for ¥788 until supplies run out. So everyone that lives in japan needs to buy me one and send it to me. The first person to do this will get a free letter of gratitude from me.