If you're looking for manga similar to SF Fancy Free, you might like these titles.
Ichiha is on a family vacation with her family in Tokyo. To Ichiha-chan, who is still an elementary school student, everything seems like a new experience. Overwhelmed by the atmosphere of Tokyo's airport, Ichiha-chan gets mixed up into a whirpool of trouble by taking her eyes off her parents for an instant! The start of an adventure of a little girl in Tokyo!
In 2150, the area of human activity expanded due to the advancement of space, and the "space voyage era" is now known. People were building living spheres around Jupiter, the largest planet in the solar system. The boy, Rico, born there, met Rage, a "collector," one day!
G takes place at these points we call boundaries. Boundaries between times, dimensions, destinies, life and death. It tells the story of young Tomak through his initiatic journey.
High school junior Suzume has no idea why the beautiful stranger she meets is looking for ruins, for a certain door. Soon after pointing the stranger, Souta, in the direction of an abandoned resort, she thinks better of it and goes to try and stop him. But before she can find Souta, Suzume unknowingly opens a decrepit door to a world beyond time and place—and stumbles into an adventure of seismic proportions.
“This is a game of the world. Complete the task and get whatever you want.” So-called genius, Xia Tian, is invited to a college where students challenge each other to fulfill their own desires. He encounters many different people from beautiful ladies to underworld mafia bosses. Will he rise to the top and learn the truth behind this game?
Ageha Shiraishi has been sentenced to death, suspected of murdering her four roommates. In her prison cell as she awaits her execution, she tells her warden, Kyousuke, that she is innocent and that she did not commit murder. Kyousuke does some research, but finds that she is still guilty. Upon his return, he finds his superior tied up and stripped. After setting her free, he finds out that he has been tricked, and it was Ageha in disguise. Ageha can impersonate anyone to the finest detail, whether it be hair color, habits, or even voice. She becomes the first fugitive of the Talsis Prison and she declares that she will find the real culprit. Kyousuke now only has one clue, which is "the Ageha" (swallowtail butterfly) tattoo on Ageha's back. The chase between the characters involved begins as they move to grasp the truth!
The keys to the city... of gold! In a world where technology and magic fuel the dream of discovering unimaginable riches, the Knights of the Dark City have proven themselves worthy of this challenge. Dream Gold, the ultimate prize, awaits any of the Knights who possess one of the 250 Treasure Keys, but this is no ordinary treasure hunt! After finding the 250th key, Kurorat Jio Clocks and Katana Shirabano will not only seek to secure the treasure for themselves; they will also have to struggle against the powers that be - namely the other Knights, as well as the vicious pirates, the Sky Tigers. Bound by the secrets and often arbitrary rules and mandates of the Knights of the Dark City, Kurorat and Katana have their work cut out for them. Find out who will lead the way to win the greatest of prizes, while fighting duels and facing harrowing danger along the way!
DO YOU HAVE THE STRENGTH TO FACE WHAT LIES BEYOND? Seventeen-year-old Suzume lives with her aunt in a quiet port town in Kyushu. One day, on her way to school, she runs into a young man searching for something and follows him to a ruin in the hills. But inside, all she finds is a single white door among the rubble. As if pulled by an invisible force, she reaches out to open it...and begins an epic journey across Japan connecting the past, present, and future.