This a Highschool DxD challenge for those of who interested;

1. You must have at least 20 chapters to complete the challenge

2. It must rated anywhere from rated K to T

3. You free to make any changes except for Rias and Issei ending up together

4. Issei and Vali most be brother by adoption

5. They relationship must be one of Rivalry and brotherly love

6. Issei must join Rias's Peerage but Vali must being already half devil will not join

7. Last but not least but not least do not change the gender of the characters.

Good luck I wish I could said there was a prize but I can't make that happen so good luck to those accept.