Hello guys, trans (as in translator, not transgender) here.
Two things of note
1. As mentioned, I asked the author about the Joe Elliot quote yet they never replied, I tried searching the original quote in Japanese but got no luck with it, maybe you can.
「人間は過去に生きていくことは 出来ないし人生は先に進んでいく」
2. The last page translation was wrong, there was a miscommunication between me and the PR, mistake on my part. But those fish things are different from Mellow, we'll put the translation down for them as "Fishmen" next chapter while Mellow and her race of underwater-human is "Merfolk", "Mermaid."