Both cross-dress characters were force to join the club due to debt.
Both involves cross dress main characters.
Both have the same comedy and gender bender genre.
Both cross dress character's serves as the club's dog.
And both also have the same harem element.
One cross dressed character from one anime was a girl, while the other is a boy.
One anime has an extra romance genre while the other is more on comedy.
One was a 26 episode and 23 minute long anime, while the other anime is more of an 12 episode omake.
The cross-dress character from one anime was rescued by the student council members and paid-off his debt, while the cross-dress character from the other anime was duped into joining the club.