Guyss help me find this bl manhwa!!

Historical bl Where the Mc is a slave + servant role currently but once was an important strategist kinda for the kingdom and he is under lord of khallak ig the lord is a she and she has a brother too he's an asshole and the ML name is gjord both leads are blonde the ml is also like a knight kinda guy (not sure)

The mc takes a medicine ordered by his lord in order to recover his memories but he loses even more memory and gets migraines
And also the title name every chapter the font gets a green moss kinda thingy which spreads rapidly
I know ts shit is very specific I used to read ts manhwa but forgot the name idk why I suddenly wanna read it the plot was kinda good so pls help out your local btch

who else is experiencing gaps between panels

You have to fight the main character of that series. You also have to win. How are you faring?