Amnesian

On Kurusu's 16th birthday, her classmate Ogami makes his confession. Kurusu is delighted but also embarassed because she knows the feelings of her friend Kiraha towards that boy. Suddenly, evil mysterious creatures attack them. So Kurusu must face her destiny, with Ogami charged to protect her...

Shy Himeko adores Chikane, the gorgeous and cool "princess" of their exclusive boarding school. She's been looking forward to their joint sweet sixteen birthday party for weeks. But on that fateful day, a shrine appears in the sky, giant robots ravage the school, and Himeko discovers that she is the reincarnation of the Solar Priestess--and Chikane is the reincarnated Lunar Priestess. As dark secrets unravel, one thing is clear: their lives will never be the same... (Source: VIZ Media)

Kyoshiro to Towa no Sora revolves around the life of Kuu Shiratori, a seemingly normal high school girl who enjoys her school life in the giant city Academia, which is thought of as a symbol of recovery for humanity since already ten years have passed since the greatest disaster mankind had ever seen, occurred. Kuu has recently been having a recurring dream where a prince meets her and takes her away. One day, while all the students at her school are preparing for the upcoming school festival, the prince, whom she has met several times in her dreams, appears. The prince, Kyoshiro Ayanokoji, requests of her just as he had done in Kuu's dreams, "Let's go... together..." (Source: Wikipedia)