Miuna Shiodome is a supporting character in the anime series 'Nagi no Asukara' (A Lull in the Sea). She is the daughter of Itaru Shiodome and the stepdaughter of Akari Sakishima. Miuna is a kind-hearted and thoughtful young girl who deeply cares for her family and friends. As the story progresses, she develops feelings for Hikari Sakishima and plays a significant role in the unfolding events, especially after the time skip, when she becomes more involved with the main group and the mysteries of the sea.