Pool: (C92) [TwinBox (Hanahanamaki, Sousouman)] Master no Kyuujitsu (Fate/Grand Order)

https://www.pixiv.net/member_illust.php?mode=medium&illust_id=64099041
https://www.doujinshi.org/book/1102074/

Artist Information:
TwinBox:
pixiv: https://www.pixiv.net/member_illust.php?id=264932
twitter: https://twitter.com/digimon215
HP: https://www.twinbox-tb.com/