Inda no Himekishi Janne Episode 1

There is a beautiful princess; Janne; in a beautiful country. She has a special ability in sword and magic technique. The country is at peace; but monsters called ogres begin to attack them. Janne takes an initiative and battles the ogres; but her younger sister Yuwa is taken over by them. Janne goes to the solidity of the Dark Elves by herself; but is trapped and captured by them. Janne is given a sexual training there and her body and spirit change little by little