影執事マルクシリーズ
Adaptation
Mistake of a Shadow Butler
Kage Shitsuji Mark no Techigai· 影執事マルクの手違い
manga Completed 2 Vol. 8 Ch.
61
-Mark, the butler of the Wallenstein family, starts his day by making tea for his master. The young master, Elmina, seems very pleased... but she has a secret...!? (Source: Kadokawa, translated)