Professor Haitoku's Western Sweets

Tokihiko Takanashi's a student who was thrown out of his residence and then fell into the care of the Kujo family in a twist of fate. There, he meets Takaaki, a college professor who hides the secret that he gets uncontrollable urges when he smells Western sweets. To help Takaaki, Tokihiko gives his body to him, and this depravity leads to Tokihiko falling in love. But, when the "Master" who trained Takaaki's body to be that way returns to Japan, their relationship undergoes a huge change.
Will Tokihiko be able to protect Takaaki from the horrid Master...!?