Robin With His 100 Friends

Robin With His 100 Friends is a 13 episode ONA series.

Plot
Robin, a boy who likes to invent something alone, decides to make a lot of friends when he has to move from downtown to "Green Village". At the stage of "Green Village" which is set the newest environment system for nature, each episode has a lot of questions about " true ecology" and "true friends" through the activities of Robin and his 100 friends.