Highschool DxD: Love and War is a fanfiction written by MihoRyudo. Otome Higurashi returns to Japan to finally reunite with her child hood best friend Issei Hyoodou.
Issei's childhood bestfriend, Higurashi Otome moved in America for a year. During their middle school years, She was oblivious that Issei had a crush on her but apparently only likes Issei as a brother. One year later, she returned in Japan and wants to surprise Issei for her return . Otome noticed that Japan feels different than before. What mysteries and adventures lies ahead? Will she find out about her true identity?