Aqua Terrarium / アクアテラリウム (OST Nagi no Asukara Ending ED)

Romaji Lyrics:

Atata kai mizu ni oyogu detoritasu
Nagai jikan wo kakete ito wo tsumugi nagara
Mayu ni naru…

Ittai dore kurai mabuta wo tojite itan darou
Matte mo matte mo bokura zutto futari kiri
Koko wa yuugen no suisou de
Namae wo yobeba awa ni naru

Atata kai mizu ni oyogu detoritasu
Nagai jikan wo kakete ito wo tsumugi nagara
Odayaka ni nemuru kimi no soto gawa de
Subete no kanjou kara mamoru mayu ni naru 

English Translation:

The detritus is swimming in the warm water
Spinning the threads for a long, long time
To form a cocoon…

How long have my eyes been closed?
Even if we keep waiting, the two of us will always be alone
This is an aquarium with boundaries
If someone’s name is called, he will turn into bubbles

The detritus is swimming in the warm water
Spinning the threads for a long, long time
As you sleep peacefully, it will protect all your feelings
From the outside, where it forms a cocoon