I love this series, and I really enjoyed eps 12. But something has been bothering me. How does Yasako fit into all this? They went into all the pasts of the other characters at least a little by now, but Yasako remains undeveloped still.

They could have given her a big part of the discovery of Kanna's diary as the key was 4223, the number her dreams kept conveying to her. But he figured out the password all on his own. Yasako didn't even get a chance.

Isako asked whether she was bullied, or was the bully at her old school. Yasako was deeply shaken by that. They've yet to go back to it, and it's stuck very clearly in my memory. Someone totally innocent and ignorant as a protagonist has been done to death, but they hinted at something very interesting that could be lurking behind Yasako's sweet personality.

I need Yasako development.