celia

If it really works like this, the time lock would vary depending on the device. Encrypt for a long time on a potato, decrypt in seconds on a good computer.

And any poll that doesn't require it is easily manipulated

A friend of mine who read the LN told me that some differences from the LN in the first anime made it quite complicated to continue the story from there.

IIRC that's a very old name of the Signal communication protocol