The Three Primary Colors of the Solar Corona - a secret world quest in the Fontaine region, unlocked after completing the "Ancient Colors" questline. During this quest, you must bring the mermaid Sluasi a variety of items from Teyvat based on her descriptions.

WHERE AND HOW TO START "THE THREE PRIMARY COLORS OF THE SOLAR CORONA" QUEST

After completing the "Ancient Colors" questline, head to Merusea Village and speak with Sluasi, who is standing near her house.

HOW TO COMPLETE "THE THREE PRIMARY COLORS OF THE SOLAR CORONA" QUEST

Sluasi will ask you to bring items of specific colors. Choose one of the options below:

1. "Colors of the Sun": Nile Lily - Sumaru, Lapis Core - Liyue, Berry - all over Teyvat;

2. White item: Qingxin Flower - Liyue, Sangonomiya Pearl - Inazuma, White Metal - all over Teyvat;

3. Black item: Sandturd Chrysalis - Sumaru, Scrap Iron - all over Teyvat.

Sluasi will react differently to the items, but the dialogue content does not affect the completion of the quest or the achievement. There is no achievement for this quest. Screenshots taken from the KyoStinV YouTube channel.