Keikaku means plan.

Too exited to continue Yukimi pays no mind at Shioko's transformation or lack thereof and reaches for the die, then after giving it a good shake she lets it free.

6

In response her pawn moved forward to a blue tile and the young idol wasted no time drawing the corresponding card, this one had the picture of a calculator displaying "(i)-ed" in it's monitor, as for the title of the card it was "Rum nation" Yukimi had no clue what any of it supposed to mean but that didn't stop her from continuing.

And so blue light washed over her leaving her body unchanged but causing a fundamental shift on the girl's mind. More specifically it had made it so Yukimi would only have rational thoughts, this didn't actually change any of her beliefs or priorities nor did it make her smarter but she was now far more calculative or rather the game made it so she had always been this way.