If Daeva finishes the Stella Problem-solving quest and makes a Stella Problem-solving Insignia[pl:"Insignias"], Daeva can exchange it for a reward.

Is Daeva ready for the reward, ak?
Daeva needs a Stella Problem-solving Insignia[pl:"Insignias"] to receive the reward.

This is how Daeva proves to Shugo that Daeva received one fragment each from five people, because only then can Daeva make the Insignia, ak.
Very good. Excellent job, Daeva.

Here is Daeva's reward, ak.
Here's the reward you were promised.

Daeva can accept more Stella Problem-solving quests.

Just come back when Daeva has time, ak. Thanks.