Here are the links to purchase the Volume 2:
Print Version: https://youha31.booth.pm/items/2473594
Digital Version: https://www.amazon.co.jp/dp/B08LPT4L47/
BTW, this chapter already has an animated version: https://www.youtube.com/watch?v=1E-WrlhKZt0
If you have a Pixiv or Twitter account, consider giving a Like and/or bookmarking this chapter to encourage the author:
Pixiv: https://www.pixiv.net/en/artworks/85603682
Twitter: https://twitter.com/yoouhaaa/status/1326439268248510470