Good anime. Good for recommendation to your friends even your family or your cousin. Most of story is content with educational space knowledge and funny experience. This anime learn us about strong bonds, confidence, trustworthy people, friendship, hard work, patience and emotional deep feelings. In every episode is mostly related to the previous episode so you must be quick to understand the story. Yes, the opening and ending songs is not bad. As good as the story of some characters. Such as main characters, supporting characters and many more. The reason you must watch this anime is educational, family bonds and believe to good people