Charamaru-kun to Dokumaru-kun

Charamaru-kun and Dokumaru-kun are two cheerful characters who teach children about the importance of social contribution. Through their adventures, they show how small actions like picking up litter and donating blood can make a big difference in the world.

The OVA presents three short stories that highlight the positive impact of helping others and taking care of the environment. The characters also warn about the dangers of ignoring these issues, such as floods caused by global warming, encouraging young viewers to take action for a better future.