Pool: (C98) [white parabellum (Nagishiro Mito)] shirakami fubuki no book (Hololive)
https://whitefox.booth.pm/items/2064428
https://www.melonbooks.co.jp/detail/detail.php?product_id=670574
https://ecs.toranoana.jp/tora/ec/item/040030833150
https://www.melonbooks.co.jp/detail/detail.php?product_id=670574
https://ecs.toranoana.jp/tora/ec/item/040030833150