Since a Saintess Is Coming from Another World, I, the Hindrance, Want to Disappear

Felicia, who suddenly gets back her memories from the previous life, is married off to a distant foreign land by her enthroned elder brother as harassment. This world is that of an otome game, and my marriage partner, Crown Prince WIlliam, is in love with the saintess from another world. Thus I, the hindrance, will be executed!? To avoid the destruction flag, Felicia decides to live as a commoner while making medicine. However, William whispers breathtakingly alluring words into her ears... What kind of a trap is this!?