I googled インナー, and it stands for "lingerie": https://www.cecile.co.jp/s/inner/.

Also Samidare using "oppai", and Minegumo's grin...

No, it's a contraction on 'innerwear' (as opposed to outerwear), it's not lingerie specifically. Even that link you used says 'inner/underwear/lingerie' as it's title.

Hmm, from the looks of it her half-bodysuit actually does cover her left side. Not completely though. That said Murasame sure has an interesting fashion sense.

Random_Fanguy said:

Hmm, from the looks of it her half-bodysuit actually does cover her left side. Not completely though. That said Murasame sure has an interesting fashion sense.

Here's a post by ichiso where you can see the bodysuit https://twitter.com/kujouitiso/status/988309218351435776

koala142 said:

Here's a post by ichiso where you can see the bodysuit https://twitter.com/kujouitiso/status/988309218351435776

Ah thanks I was looking all over for that one.