Greetings, I really don't know what to answer you because I haven't read or seen any anime or manga related to the subject.
From the style of the drawing I intuit that it is a graphic novel, if so, I'm more inclined to see anime, in fact I hardly read manga.
Well, anyway, thanks for sharing! 💕
It's a manhwa series (Korean manga) by PTJ comics. Feel free to give it a try 👍