10-year old Ken (Ken'ichi) Mitsoba is an average kid who goes to elementary school, and struggles with his studies. Meanwhile from ninja land aka Land of the Ninjas, a little ninja named Kanzo Hattori comes, and befriends Ken'ichi. Hattori is now a part of the mitsoba family along with his brother Shinzou, and his ninja dog, Shishi-Maru. Hattori helps Ken'ichi with his problems, and constantly keeps an eye on him, as a good friend.

A manga about a man who crash lands on an underdeveloped planet ruled by "cow-men" who eat humans, and how he tries to "save" a girl from them.

A Japanese manga about an obake, Qtarou; (Sometimes also spelled as Q-tarou) who lives with the Oohara family. Qtarou, also known as Q-chan or Oba-Q, is a mischief-maker who likes to fly around scaring people and stealing food, though he is deathly afraid of dogs. (Source: Wikipedia)

In 2018 a young boy named 21 Emon dreams of becoming a space pilot and exploring space in general. He is the heir to a long line of hotel owners, which dates back to the founder of during the Tokugawa shogunate. Since the Earth has become a planet visited by tourists from all over the space, 21 Emon has to help out his family's business or they'll go bankrupt.

Doraemon and Nobita go through hell to take revenge on Gian.

One day, an alien named Mojako, a robot named Dommo, and a boy named Sorao ran away from home and headed for outer space. An unpredictable and slapstick adventure begins! (Source: Shogakukan, translated)

From Birdman, a superman from space, he received a mysterious mask and cape. Wearing these, even a slightly clumsy elementary student can transform into Perman, a hero of justice! Rescue the weak, thwart the evil. Together with his three friends, Perman does his best every day to protect peace on Earth

Kawaru is a typical ordinary elementary school boy until the day he enters into a “haunted house” to pick up the ball he accidentally throws in and finds a family of mysterious dolls. When he pushes the dog-doll’s nose button, he suddenly turns into a dog! Will he be able to clear the misunderstanding and transform back into a human?

An ordinary high school student, nicknamed "Bon" for his ordinariness, becomes a "time travel agent" whose mission is to save people's lives in historical events that have occurred in various times and places around the world (Source: Netflix Japan, translated)

In this 1977 science fiction short story, a soldier in the army of Cambyses II is wandering an endless desert, lost from his company. Just as he is about to accept death, he sees a glimmer of light in the distance — and when he follows it, he finds himself in a large building full of strange machines he has never seen before, and occupied by one young girl. They cannot communicate; her words are as gibberish to him as his are to her. The girl nurses him back to health, treating his wounds and feeding him. But when Sark attempts to leave, bringing provisions with him, the girl turns on him violently… (Source: Brickme)

Each chapter follows Fukuzou Moguro, a traveling salesman, and his current customer. Moguro deals in things that give his customers their heart's desire, and once his deals are made and their unhealthy desires are satisfied, Moguro's customers are often left with terrible repercussions, especially if they break the rules of his deals...