[yuzen003]

Originally Posted by MrTerrorist

Spoiler for c25:

Haruna continues pounding the army. And it turns out, it wasn't Ryoukan Kita who ordered the attack but some hot headed Army Captain who wanted to regain honor and glory for the army. Kita calls out how stupid the guy is.

Oh and a new ship appears!

If you're talking about Maya she originally showed up in chapter 15, in chapter 16 she was told to wait and retrieve the other 2 and that was what the singing comment was about.