The anime series Nagi-Asu: A Lull in the Sea was officially announced to the public.
The first episode of Nagi-Asu: A Lull in the Sea aired on Japanese television.
The final episode of the anime series aired, concluding the story.
The series was released on DVD and Blu-ray for home viewing.
The establishment of separate communities: the Sea People living underwater and Surface Dwellers on land, leading to cultural and social divisions.
The childhood of the main Sea People characters who attend school underwater and form close bonds.
Hikari moves from the undersea village to attend school on the surface, starting the interaction between sea and surface students.
Surface classmates Tsumugu and Miuna meet the Sea People students, beginning cultural exchange and friendships.
Manaka experiences emotional conflict between her friends Hikari and Kaname, highlighting character dynamics.
Kaname risks danger in the sea to protect Manaka, deepening their relationship and tension with Hikari.
Miuna and Tsumugu share a significant moment, creating complex feelings among the group.
Rising misunderstandings and disagreements lead to community tensions and conflict near the sea surface boundary.
Sea and surface inhabitants come to mutual understanding and embrace coexistence, resolving prior conflicts.