Tomorrow Will Be Another Day Next to the Hero summary:
Mao Kurose can't help but be intrigued by her classmate Kanade Momomiya, who sits next to her. She's got these mixed-up feelings she can't make sense of when suddenly, she remembers the moment when she, as the Demon Queen, killed the Hero. And that Hero has the same face as Momomiya...
A girls' story that transcends time!