Responses
Couldn't find anything either. Only mention of vol 2 can be seen on author's twitter / X under the post with caption 'Nagahama to be or not to be vol. 2 image board'
She's maybe making image board and outline for vol 2 in the future. Since she's working on I think it can be considered manhwa with weekly uploads right now, so if vol 2 is really be published, it'll probably take quite some time to be made.
There is a volume two already!!! It was released earlier this year but still no official license and translation, please follow and support the author on IG @scaberiko, there are also a lot of extra contents from itsuki and nagisa ヾ(☆▽☆)