Izuna has been living the life of a double, devoting it to represent Princess Kisara of the East country, who has always had a very weak health. Even within the East country, a very few within the Royal Palace knew about Izuna's real identity. And the only one who called Izuna by her real name was the real princess. Izuna's time of serving as Princess Kisara's double was supposed to come to an end once it was decided that Princess Kisara would be marrying to the Crown Prince of the West country to bring peace between the two countries. However, just a few weeks before the marriage ceremony, Princess Kisara's health suddenly turned worse. The Princess realized she had failed to set Izuna free of serving a life of a double. She apologized repeatedly at her deathbed, leaving the two countries' peace on Izuna's hand. Now Izuna will probably have to lead the rest of her life as Princess Kisara, marrying a person from the enemy country. She vowed to fulfill her precious Princess's dying wish. However, she vowed never to fall in love with her future husband. But, what exactly awaits Izuna in the West country?

A high school girl became a wife?! And her husband is the worst man? Because she had to pay for her family’s debt, she was married! The husband is the son of a big Hotel company. The first time she saw him she said “You got a wife thanks to your money! You’re the worst!” “I’m maybe the worst”, he said “but you’ll have to live all your live by my side…” And then, their became closer to each other and it was the beginning of their love story…

School life becomes too much for Sonohara Kokone when Sei-kun, who is as popular as a real prince at school, suddenly asks her out. They barely know each other due to her doll-like but expressionless features. So, why is he minding her so much!?

Let’s get into a time machine and return to that time. Where it was always fun and you were always laughing, to that time… "I only have three more months to live" Yui who just transferred to a new school in the countryside becomes Ryo’s classmate. Yui who is suffering from an illness has a "wish" that she can’t tell anyone, but Ryo wants to grant her that wish but… After death, reality hits Ryo and Yui. This is the story of the eternal promise that was made by the two of them.

Oneshots 1. Mainichi Kimi no Koto bakari I have always loved him because we're always together since we are childhood friends. I couldn't imagine him finding someone he loves… I can't suppress my feelings anymore!! 2. Iori-kun no Nayamigoto She went to karate training camp with her childhood friend and… 3. Boku no Riiko-sama 4. Christmas Candy 5. Sono Yubisaki ni