Puyo Puyo 7 Japan - NDS - Puzzle

It's a rainy day at a typical Japanese classroom - only that it's raining rainbow-colored jellies! Math wiz Ringo Andou is scared to death of this strange situation, until she is schooled in the ways of Puyo by the familiar face of Arle Nadja. When Arle suffers a mysterious headache and disappears, Ringo sets out on a mission to stop the ongoing flood of Puyo. But the plot thickens as Ringo uncovers plot after diabolical plot and realizes the very existence of mankind is at stake.