Sakura is a high school girl who loves to clean. One day, she suddenly crashes into a Demon King from another world. Apparently, this world has fallen prey to a curse that forbids the use of cleaning magic...?! A modern-day high school student in an unknown world... can be useful by "cleaning"!? A super new and exciting otherworldly fantasy----!

She worked herself to death in her past life, but then she was reborn in another world as the villainess Ronia! As expected, her engagement is broken and she's expelled from society, but now she takes that chance to live peacefully, and even opens a cafe with the help of her fairy comrades, which is becoming unexpectedly popular with beast-kin...?

By the time she realized it, college student Mari Toujou had fallen onto a battlefield. Looking around in confusion there was a large crowd of knights clad in western armor. They called Mari “Her Majesty”. It appears that she was in the middle of a war and her forces were at a disadvantage. Certain that this was a dream, she worked out a plan and achieved victory but… somehow, she had really replaced the queen!? What she understood after was that the origin of the war was the queen’s misgovernment and that she couldn’t return to her original body. So Mari decided to reorganize the ruined country–? Drawing the truth of the tracks of love, it’s a miracle fantasy!

After successfully getting hired as a fashion designer, Mai rewarded herself with a trip to Kyoto and was just enjoying herself when she got struck by lightning at Honno-ji. She then loses consciousness awaking only to find Honno-ji ablaze. In the spur of the moment, she saves a person from being attacked, but it turns out he's Oda Nobunaga?! The popular romance game is finally being published as a comic!

A manga anthology based on DMM and Nitro+'s browser game Touken Ranbu -online-http://www.akitashoten.co.jp/comics/4253153151

From Storm in Heaven:

The orphan girl Angelique lives in Hidamari Villa with four other comrades who make up the Orb Hunters. They aid her in purifying otherworldly creatures known as Thanatoi who attack the populace, draining them of their life energy. Two large organizations also oppose this threat, while its members try to discover more about the Orb Hunters and a possible connection with the legend of the Queen.

Hayate and Choko are twins who are as different as night and day. Choko acts like a shallow princess whose main concerns are her looks and cute things, while Hayate is the cool but overprotective brother with a penchant for sabotaging potential relationships for Choko. Naturally, Hayate plans to act accordingly when Chouko confesses to the school's prince, Tsukiyono (albeit, mainly for his looks).

After an argument over Choko's love life, Hayate and Choko end up tumbling down some stairs together, and bizarrely find they've switched bodies. Even worse, and much to Choko's horror, Tsukiyono starts to fall for Hayate who is now in Choko's body.

From Dazzling Scans:

The country of Japan is being terrorized by the undead, known as Revenants. Tachibana Kaguya makes it her life goal to protect her fellow citizens from these zombie-like creatures, just as her father did before her. When she enrols in Reimeikan Academy, a school that specializes in training soldiers that will eventually become part of a movement to expel the Revenants once and for all, she is reunited with Tokugawa Kazui... a boy her father had died to protect—a boy who had promised to build her a world free of monsters.