Eh, it’s an “official spin-off”, but it’s drawn by a different guy. Half of the appeal of this manga to me came from the cute character designs. This ones lacks them
It also lacks the Yumeji-Merry Dynamic which was the best part of the original imo, and it's only for the premise that it's not the same Merry we know that it doesn't betray the character development she had on the main series.