Currently available on 3 streaming services.

Streaming, rent, or buy Nagi-Asu: A Lull in the Sea – Season 1:

Currently you are able to watch "Nagi-Asu: A Lull in the Sea - Season 1" streaming on Crunchyroll Amazon Channel or buy it as download on Apple TV, Amazon Video.

Cast

Natsuki Hanae
Hikari Sakishima (voice)
Kana Hanazawa
Manaka Mukaido (voice)
Ai Kayano
Chisaki Hiradaira (voice)
Ryota Osaka
Kaname Isaki (voice)
Kaito Ishikawa
Tsumugu Kihara (voice)
Aya Endo
Miori Shiodome (voice)
Mikako Komatsu
Miuna Shiodome (voice)
Kaori Ishihara
Sayu Hisanuma (voice)
Kaori Nazuka
Akari Sakishima (voice)
Junji Majima
Itaru Shiodome (voice)
Motomu Kiyokawa
Isamu Kihara (voice)
Yoshitsugu Matsuoka
Shun Sayama (voice)
Shinji Kawada
Satoru Mihashi (voice)
Kohsuke Toriumi
Uroko (Uroko-sama) (voice)
Masuo Amada
Tomoru Sakishima (voice)