This is Shotaro Ishinomori's manga adaptation of Shozo Numa's seminal S&M science fiction epic.

Volume 11 : Time Travel & Time Travelers1. A Watch Seller Travels Through Time by Takayama Shinobu*2. The Classroom Where He Is by Kumeta Natsuo3. The Person from the Future is Next to You by Mikawa Verno4. Time Travel by Gunjou5. The Professor and the Strange Love and Hate by Saeki Yashiro6. Samurais by Kari Erika7. Mushroom and Kappa - Time Travel Chapter by Magami Guriko8. Memento Mori by Tokitoh Kanade9. Darkness Future Design by Yoneyama Setsuko10. You Can’t Travel Through Dimensions by Kinoshita Sakura*11. If Time... by Buchi Keiko12. Nankai Loop? by Serikawa Mame13. Future Tedium Efforts Record by Mitsu Nanae14. When I Came Home, There was a Samurai by Igarashi Ran15. After Long Long Years by Sakura Maro* indicates oneshot being scanlated.

Stardust Memories is a short story compilation of human beings in the distant future where we have traveled deep into space. Each story describes a moral dilemma that people traveling in space may experience which is something that we have yet to determine in the current world.

Stardust Memories talk about such problems as the implications of having people travel for years, even decades, in the cold, quiet and endless universe. A different story tells on how human presence in a foreign galaxy will affect the environment. The topics the author decides to write about are interesting and makes you wonder about the future.

Sakichi sees his peaceful summer onstructed by a girl from the Edo period who assures that he's the reincarnation of his late lover.

Oneshot published under the label STUDIO MEN alongside with Majo wa Houki de Sora o Tobu .

A tale of obsessive love and constant pursuit, told over a 1000 years.
Escaping from a brother who had just ascended the throne, Yoshitsune, along with his servant, comes across a house in the middle of a desolate mountain. Oddly enough, only a young woman lives there, who seems to possess a very dark and ominous past.
This long journey of more than a thousand years focuses on our main protagonist Kurou. It can be somewhat confusing at the beginning, but once you understand the plot this story can be quite entertaining.
The main thrust of the story goes like this: Kurou meets a beautiful woman by the name of Kuromitsu, and begins a relationship which transcends life and memory. Kurozuka tells the tale of a journey undertaken by immortals, and those who chase after immortality.
The majority of this story takes place many centuries in the future, after Kurou has been separated from Kuromitsu. Having lost almost all of his memories, Kurou seeks to understand why he cannot die, to rediscover his identity, and to find the woman that haunts his dreams.

Nana, an apathetic 24-year-old with nothing much in her life, suffers a car accident and wakes up in her 14-year-old junior high body. As she lives through each day, she starts to remember things she buried deep in her memory, and she can now not remember being involved with her older sister, whom she deeply admires, and her sister's first love, a senior at her school.

The year is Universal Century 0096, and Banagher Links is a student at the Anaheim Electronics Industrial College training facility at an incomplete space colony. There, he rescues a girl named Audrey Burne and helps her to evade capture by Zeon remnants known as the Sleeves. The Sleeves are after "Laplace's Box" an item the Vist Foundation has had in its possession since the beginning of the Universal Century which can be used to topple the Earth Federation government, and Cardeas Vist, the head of the family plans to hand them the key to it. Audrey, fearful of what will happen, wants to convince Vist not to give them the key. The Earth Federation's Londo Bell unit attacks the Sleeves and Banagher is drawn into the chaos. Adapted from the light novel series that were later adapted into a feature film series, the first of which has already been released this February 2010.

27 years old, civil servant (government employee) examinee, Nam KiHan! One morning, when he woke up, he traveled back in time of 16 years! A scenario where everyone dreamt of at least once, reliving your life. Watch as Nam KiHan attemps to relive to become an elite of the society! Webtoon in Naver Please address this work as a Manhwa (Korean word for cartoons)

As a baby Jiro was delivered to his foster parents by a massive oni, who said he would return for Jiro in 15 years. When the time comes Jiro must contend with enemy oni, dark cultists, and their minions while attempting to protect both his parents and girlfriend from their depredations. Ultimately he must embark on a journey through the past, future, and other dimensions to embrace his destiny as Shuten Doji reborn.

One night an android which looked like a cat (a Necossass: Six type) suddenly appears in Katsuhiko Katsu's room. The android said that she comes from the 22nd century and that Katsu had left a note in a time capsule stating that he wanted to live with a robot-cat.

From MangaHelpers:

No one can make the perfect decision every time. Everyone has those moments that they wish they could redo and alter their decision. This story revolves around girls that got their second chance. [DrCoke]

Toki wa… is a manga about two guys who travel back in time and visit Tokiwa Manor in the 1950′s. Tokiwa Manor is an apartment building where Osamu Tezuka, the father of modern manga / anime, and many other early influential mangaka once lived.

From MangaHelpers:
Ichijo Kazuya thought that he was murdered, but when he came to, he was back in his high school days. He lived his entire life as a playboy and had had countless sexual encounters with women until that fateful day that he was killed. He realizes that his murderer was his old high school friend Tanaka Masaki who was jealous of Kazuya’s relationships and his built up anger eventually exploded.
Taken back 15 years into his past, it seems that he has been given a second chance at life and given a chance to make different choices. He decides that the way to prevent his eventual demise is to make sure Masaki is more successful with girls and loses his virginity before Kazuya. But fate seems to be steering Kazuya towards the path of his previous life and keeps introducing the same girls he had sexual encounters with.

Fourteen-year-old Kouichi Hayase’s life has always been a mediocre one, if not dismal. However, those days of being bullied by classmates and escaping to a fantasy of being a hero are put to an end when a certain “accident” bestows on him a girl and a gigantic humanoid robot called “LINEBARREL”. The extraordinary power that Kouichi obtains puts him and everything around him on a sudden rollercoaster ride of battles, intrigues and friendship! During the course of his adventure, the boy starts to learn what life has to offer; he meets new friends, bids farewell to the old ones, but most of all he now has considerable responsibilities and is forced to confront the world around him.

One of Go Nagai's first works, this violent period piece takes place in the 1500s and stars a talented, low-ranking ninja named Shishimaru. In it, Shishimaru fights against Ginnai Doma (an immortal samurai who, despite being butchered multiple times, doesn't die) because Ginnai murdered his comrades.

Despite being set in historical times, it has time travel, aliens and the alternate universe war.

From MangaHelpers:
The world is in a war against an alien race called "Mimics," who have taken over most of the world with a mission to eliminate the human race. Keiji Kiriya is a new recruit in the United Defense Force, which is battling against these "Mimics." On his first day of deployment, Keiji and his unit encounter "Mimics" and are all killed... Or was it all a dream? For some inexplicable reason, after every time he dies, he is resurrected and returned back to the day before the battle. Why does this happen to Keiji and how can he escape from this never ending cycle?

Note: Nominated for the Eisner award for the "Best U.S. Edition of International Material - Asia" in 2015.

Feng Ming was only 19 when he lost his life saving a child from death without hesitation. The grateful father of the rescued child grants Feng Ming a second chance at life. Unknown to Feng Ming, his soul is whisked away to a far away ancient land (resembling the dynasties of China).
Upon waking up, he finds himself inhabiting the frail body of Thunder Kingdom's crowned prince who is also graced with the title of the most beautiful man across all the lands. However, his beauty has a price as he attracts the unwanted attention of the minister of affairs, Rong Tian who finds every reason to torment the prince mentally and physically. As Feng Ming starts to get a hold of the conspiracies surrounding him, what will happen when the prince's true identity is revealed? And what happened to the 'real' prince?

Junior high school student Yamada hates bothersome things like studying, eating, and bathing. When he discovers he can jump through time, would he be able to find the way to a perfect life?

From Anime News Network:

A collection of short stories that look to mankind's exploration of space, and examine the possibilities that we could face when we decide to take those first fateful steps into the unknown.

Fudou Jun is a highschool teacher and takes a trip with a group of students. While there, a group of martial artists staying nearby take a strange interest in the girls.
These men are actually demons and after changing into their true form break into the cabin to rape the girls. One gets Jun and violates her.
She feels her soul being torn apart and transforms into Devilman Lady. With newfound powers and strength she kills all the demons and protects the girls from any further harm.
What are these demons and why did she turn into a hybrid of one? What does this mean for her and for the rest of humanity?