Di Gi Charat

Deijiko is the princess of the planet of Di Gi Charat. After reading a book, she is influenced to want to help everyone be happy. She leaves the castle and pretends to be a normal girl. She tries to make everyone happy by taking various jobs around the town and thereby making all sorts of new friends and inevitably, enemies. (Source: Anime News Network)
After reading about a famous philanthropist, Dejiko wishes to abandon her princess duties to go out and help people throughout Di Gi Charat. But escaping the castle walls is easier said than done.
Dejiko, Puchiko, and Gema are walking along until they come across a line of people before a cake shop. Because the baker, Rinna, sleeps in often, there's no telling when it'll open. So the trio takes matter into their own hands with Dejiko naturally leading the way. They learn a valuable baking lesson and in the process make a new friend.
Right after the narcoleptic Rinna decides to join the gang, a cat leaps on Dejiko's face. All make an ill start with another girl by named MeeK who is in hot pursuit of the cat because it stole a fish from her family's shop. In helping MeeK set traps, all learn how deep the cat's reasons run.
New antagonists Deji Devil and Piyoko have arrived on Di Gi Charat to make everyone sad. When Dejiko and company (MeeK now a part of the team) pass them by, the duo picks up information about a contest to decide the best behaved child. But when Piyoko cheats her way to the top, the prize is less than what she expected.
Dejiko is asked to replace a movie star who's been rushed to the hospital. However, a mischievous boy also has the same intentions.
Piyoko and Deji Devil introduce themselves to the heroes, who don't consider them a threat. The duo intends on injuring Dejiko if they weren't as airheaded as her and her friends.
Dejiko finally starts filming with Piyoko ruining things at every turn.
More filmmaking craziness abound! The crew is scared off by a ghost, so Dejiko and company pick up slack in teaching a little girl how to ride a bike. But the girl isn't what she seems.
Irritated at catching his favorite show too late, Deji Devil makes the bell tower attendees - Dejiko and company - put in overtime.
Dejiko, Puchiko, Rinna, MeeK, and Gema balance between belltower responsibilities and aiding an artist who has yet to paint something.
Dejiko and Puchiko are whisked off to a fancy party at the castle. Rinna and MeeK also wish to attend but haven't anything nice to wear until the sneaky Deji Devil lends a hand.
One strike of the belltower's bell sends a time-travelling boy falling out. The gang can't make up their minds which point in time they want to visit...or can they?
Calling themselves the Phantom Thieves of Di Gi Charat, the gang continues helping people Robin Hood-style. A greedy toy collector enlists the aid of Piyoko and Deji Devil, who have their own plans for his spoils.
A brother and sister want to see the stars, but light pollution from a nearby amusement park hinders the opportunity. And Piyoko literally goes Sherlock Holmes when she and the carnival believe the Phantom Thieves plan on stealing the park's glass imitation diamond.
The Phantom Thieves try their hand at freeing a dolphin from a dirty tank.
Deji Devil has studied the Phantom Thieves for a while, and now Detective Piyoko is ready to stop them at all costs. However, even though she does trap them, the valuables at stake aren't what they seem.
MeeK's family's fish market is facing a crisis: nothing available except empty carts and sea slugs. So Dejiko vows they'll get to the bottom of this and, if not find more products, then go treasure-hunting as pirates.
News of the gang's pirate exploits reaches a certain two, who give the unsuspecting five a map to a trap-filled cave.
The reason for an empty fish market and empty ocean is revealed in the midst of MeeK's sea slug nightmares: a mountain-sized whale she knows as the King of the Seas. The poor cetacean has an anchor caught in his tail, which can only be removed by Dejiko's eye lasers.
Everybody except Puchiko is ready to give up the treasure hunt. Just when they finally find something, Deji Devil and Piyoko come back for more and in the process cause an eruption. Again, the prize isn't what it seems.