Dragon Era

Hello guys!
I decided to write my own book. I'm also thinking of animating it. Well anyway I hope you'll like it.
It includes dragons, romance, adventure and fantasy.
The story I'm planning to write still isn't 100% completed. I mean there will be new ideas for a story all the time so I don't know how the story will plot yet.
I hope you will enjoy reading this.
Feel free to message me for new ideas.
I'm sorry for all my grammar mistakes xD
Patricia ;)
And btw I'll be using Japanesse names and sometimes even phrases.
Main about the story:
Sixteen years old Asuna Watanabe joins The Dragon Army as a new cadet. With her friends by her side they are known as Dragon Keepers. Dragons are very rare mystical creatures; there's only around thousand left. Tera Kingdom is the last kingdom raising and keeping care of them. At age sixteen young cadets choose how are they going to serve the Kingdom. They can choose between Land Army (two sections: ordinary solider or beast rider ( giant wolves, big cats or any other predator)) and the Dragon Army. But however only the best man and women can get in. You must be extremely agile and smart. Once they join in every cadet gets his own dragon egg. Raising and training it is just half of a job. With them they help Land Army keep peace in their Kingdom. But that can't last for a long time. A strange "Rider" with a dark dragon appears. He has a strange request and only one person can fullfil it. Will Asuna accept his request or will she act on her own? Who he really is? Is there someone who has hidden feelings for her? There's only one way to find out. They aren't called "Dragon Army" for nothing.