I'm the only one who can't live without an oxygen tank in the underwater world. No matter how suffocated I feel, I preserve peace and harmony by pretending the selfish girl and my friends with complicated family backgrounds don't bother me.
| Actor | Role |
|---|---|
 Miyuki SawashiroScuba / Little Girl / Mom (voice) | Scuba / Little Girl / Mom (voice) |
 Ryo HirohashiSheer (voice) | Sheer (voice) |
 Fumie MizusawaPatch (voice) | Patch (voice) |
 Saya TanakaClassmate (voice) | Classmate (voice) |
 Eriko KadokuraClassmate (voice) | Classmate (voice) |
| MMichitaro HaraMan (voice) | Man (voice) |
| NNamiko IshidateMyon (voice) | Myon (voice) |