Amalie and the Gluttonous Duke: The lonely Young lady Wants Her Entire Heart to Be Devoured

Amalie has endured many things simply because her younger sister is sickly and because she is the older sister. She can no longer bear to harbor negative feelings towards her family. So, she heads to the "Gluttonous Duke," who is said to devour people's various emotions... However, the Duke who appears is Thaddeus, a handsome young man with an unhealthy appearance and a tragic fate. He apparently gets sick from eating negative emotions and is constantly suffering from indigestion. But, apparently, Amalie's emotions are delicious no matter what, and his health recovers. Following this, under the pretense of helping the Gluttonous Duke with his work, Amalie becomes Thaddeus's cook...!? https://www.cmoa.jp/title/338992/