Story by Taiki : https://archiveofourown.org/works/37601566

A celebration on Watatsumi Island was upon the citizens of the place. Kujou Sara, being on the island at the time to talk with Kokomi, agreed to help in the preparation. A large amount of pearls was needed for the festival, so several teams and individuals scattered across the island to collect them. However, Kokomi is the only one available to dive into the waters for the pearls that were submerged around the island. Seeing as there were plenty of people collecting on land, Sara offered to help out in diving for pearls. Sara dives into the clean waters after removing most of her clothing. To her surprise, there seemed to be none in sight. She thought it could be due to the lack of eyewear, but the pearls being a bright pink color should be enough to spot them. Sara dives deeper into a cave in an effort to find some. She figured swimming in a darker environment would allow her to spot a pearl much easier. It was dark and her vision was blurry. Sara can feel the weight of her chest moving every stroke she takes as well. It’s been a long time since she ever swam in water, let alone dive. She realizes this task that she has taken might be more difficult than she thought as her breath slowly drained, but her honor gives her the motivation to complete it for the people of the island.