@Introvert So
Spoiler!
This happens at the end of the novel according to spoilers) Valer and Duke Ludwig (the husband of the FL’s mother) are shocked to find out that Arelin is getting married. Meanwhile, Arelin’s biological father appears before everyone as a slime, causing people to think Arelin has lost her mind. Her fathers even bring in a doctor for her. Duke Ludwig goes, “I lost to something like this?” while Valer says, “I don’t understand your taste, sister. Your taste is just"
When Arelin’s father appears in slime form, only Arelin can hear him. She gets upset and demands that he show up in his real, extremely handsome form on her wedding day. He arrives in human form, wearing ancient holy knight armor, radiating an overwhelming aura. He’s so handsome that everyone is stunned; Valer ends up admitting that his sister actually has great taste, and Duke Ludwig immediately feels utterly defeated 😂
When Arelin’s father appears in slime form, only Arelin can hear him. She gets upset and demands that he show up in his real, extremely handsome form on her wedding day. He arrives in human form, wearing ancient holy knight armor, radiating an overwhelming aura. He’s so handsome that everyone is stunned; Valer ends up admitting that his sister actually has great taste, and Duke Ludwig immediately feels utterly defeated 😂
I like to post spoilers for the stories I find interesting because I don't have much time to read novel due to busy schedule
you will find me in most romantic historical manhwa comment sections 
you will find me in most romantic historical manhwa comment sections