Wifeswap: How I Wound Up Married to My Twin's Husband -Love Fell into the Palm of My Hand-

Ito, who loves to watch Anime all alone, has a twin sister, Oto, who is an actress known all over Japan.
One day, Oto disappears...and Ito has to take her place!
Oto is married to a famous actor Manato, and Ito needs to live with him...someone who reminds Ito of her favorite character in the Anime!
Soon Ito finds out that their marriage is fake, but Manato seems to have a secret...
When Ito falls in love with him, he starts to change...what is his intention?
An awkward love story.

(Source: Kadokawa)