mercury, the forgotten planet. shoko was often forgotten between her so-called best friends, satoru and suguru. of course, she considered them best friends. but did they ever consider her one? those two were the strongest. but she wasn't. all she could do was heal and use reverse cursed technique. although she's highly valuable, she still feels forgotten in a way. but she doesn't want to be. she wants her happy ending. but where was it? maybe it's too late for her.