When Link first arrives at the shrine, he finds Pokki collapsed over its Sheikah Slate terminal in a state of exhaustion from having crossed the desert to find it herself. She despairs that if only she had a refreshing drink, she would be able to complete the shrine's challenge and claim its treasure.
Furosa who runs the Noble Canteen in Gerudo Town, upon hearing that her best customer is in need, informs Link that she can make a very refreshing drink called a Noble Pursuit if he were to bring her some ice from the Northern Icehouse, noting that Anche (the guard) is only active while the sun is out.
Anche, upon hearing that Furosa is in need, willingly supplies Link with a large block of ice which he must then carry south through the ruins leading back to Gerudo Town. This proves challenging as, in addition to the block of ice slowly melting in direct sunlight, the ruins are also infested with Bokoblins and Lizalfos. Once the ice is safely delivered to Furosa (who is graciously waiting at the southern edge of the ruins), she tells Link that he should let Pokki know there is a Noble Pursuit waiting for her at the Noble Canteen. Once Pokki hears about the drink, she hastily takes her leave from the Sheikah Slate terminal and returns to town, allowing Link to access Misae Suma Shrine.