If you're looking for manga similar to Great Trailers, you might like these titles.
Today, there’ll be discoveries and encounters again. For the girls marching forward in a world in its afterlife, there are still various things to experience: The remains of an extinct civilization, other living things, as well as lessons taught by the ruins.. there is still a lot to be seen in the world. That’s why... living is still fun!
A cosmic disaster changed the Earth forever, stripping away every last drop of color from the world. Mankind also changed: the familiar human face is almost forgotten in a world now populated wholly by mutants. Against the backdrop of a moody urban landscape, a lone wolf investigator named Avidia relies on both his wits and extraordinary gun to hunt down the world’s last hidden scraps of color. He soon crosses paths with a very special girl–one who just might hold the key to bringing back what the world has lost.
The world is deep and wide place. In order to know more about it, the Sky State Central dispatched the investigators Yoki and Shuka to conduct investigations around, and they do so while being very passionate and loyal about their work. This is a story of Yoki who wants to know more about the world and Shuka who loves the world. A slightly mysterious story weaved by these two people traveling around the world, meeting people, and sometimes even solving mysteries. "It sounds like it's going to be an amazing story, isn't it, Yoki?" "I wonder about that. I don't mind as long as Shuka-senpai is working seriously."
In a deserted post-apocalyptic metropolis riddled with a mysterious material a young girl is searching for any signs of life and supplies.
When he awoke, the world had changed. The apocalypse was here and those who once enjoyed fame and fortune were now mere mortals, just like everyone else. A single can of meat was enough to trade for a once international superstar. This was a world where fists spoke louder than words...
Takes place in the world after the "end" and follows machine soldier Lear, who has been following the "Last Order" and continuing an endless war for over 100 years.
After a major natural disaster, earth is slowly transforming into a desert in which mankind tries to survive. Water becomes a precious resource and the center of political intrigues. In the middle of this, a young boy, member of a gang, encounters a beautiful girl who's a merciless warrior and holder of the key to the salvage of humanity.
En has no prospects as a child of the slums—he ekes out a living by selling the scrap cyborg augmentations he scavenges to anyone who will buy. But when he's forced to go through some unethical experimentation, he transforms—making him eligible to become a fighter in the only thing that matters in this bleak world: The Rokudo Tournament!