As everyone knows, the changes in the phases of the moon were related to the Sun's radiation and its orbital period around the planet.
According to the observations of the wizards from the Prophecy School, the cycle of the moon in this other world was about 30.25 days, approximately equating to a month.
No, perhaps it should be said the other way around: the number of days in a month was determined by the cyclical changes of the lunar phases!
But June 15th every year was an exception, for on this day not only there would be a full moon, but the bright moon would shine more dazzlingly than ever and even trigger a magic tide, which is why this day was called Monday!
It was also an astronomical phenomenon unique to this planet.
Judging by the date, it was still around April, and there were still a full two months until June 15th. This year's Monday had unexpectedly come early...
