This is the second time the rock wasn’t used to cause a miracle. Yuka wanted to use it to wish for their victory, but of course everyone objected to the idea. No meaning if they win the dance competition by cheating.
Yuka is becoming too reliant on the rock…
Also, Rin’s mom is a bit suspicious. Maybe she knows about the rock… and her teru teru bouzou were a bit too effective… rock level effective.
Open Your Mind 