doujinshi : Novum Chaldea No Kyuuketsushu-San (Fate/Grand Order) [Umihotaru Harumare]
Novum Chaldea no Kyuuketsushu-san (Fate/Grand Order) [Umihotaru Harumare]
Link
/r/doujinshi - hentai with a storyline
original: https://reddit.com/r/doujinshi/comments/e4z2tw/novum_chaldea_no_kyuuketsushusan_fategrand_order/