Nijiiro no Fushigina Ishi

A group of children in a small town discover a strange, rainbow-colored stone that grants them the ability to see into the hearts of others. Through this magical stone, they witness the hidden struggles and pain of their classmates, including those who are often mean or distant.

As they learn that the bullies and troublemakers are dealing with difficult home lives, the children must decide how to use their newfound understanding. By reaching out with kindness and empathy, they begin to heal the wounds that divide them, discovering that everyone carries their own burdens.