In the late 19th century, as the cruel times of the Bakumatsu period came to a close, a new Meiji era marked the age of restoration for Japan. With the war over, its infamous hero Hitokiri Battousai disappeared into thin air, leaving only his legend behind. Years later, a seemingly plain wanderer named Kenshin Himura encounters Kaoru Kamiya, the owner of a struggling local dojo in Tokyo. Kaoru pursues a self-proclaimed Battousai who roams the streets, indiscriminately killing citizens and police officers. Furthermore, the warrior professes to use the Kamiya Kasshin-ryu—a sword style developed by Kaoru's father deeply rooted in the essence of life, not death. Kenshin decides to help Kaoru take down the impostor and restore her father's dojo. Unbeknownst to all, Kenshin is none other than the real warrior whose name still terrifies the people. Although Kaoru eventually learns the truth, his oath to atone for his murderous history by bloodlessly protecting the weak moves her, and she welcomes Kenshin to stay at her dojo. However, Kenshin's ideals are soon challenged by ghosts of the past and enemies of the present.

While walking through the forest one day, a witch named Alyssa finds a bush glowing with a magical aura. She discovers a baby who, although not a witch, possesses magic that is too strong for that of a mere human. As such, Alyssa decides to raise the child as her own, naming her Viola. Sixteen years later, Viola is all grown up and now towers over her youthful mother, and her mature looks cause many to confuse their ages. Nevertheless, Alyssa adores her child despite Viola's possessive streak and tendency to drive away anyone she fears will take away her mother's love. Viola may not be sure where she came from, though she has all she needs in Alyssa and the plethora of Alyssa's friends who have come together to raise her. Under Alyssa's guidance, Viola will learn to master her magic and make her adoptive mother proud.

Meng Chuan witnessed his mother killed before his eyes, so he trained very hard hoping to one day avenge her death. But his peaceful days were broken as his wedding engagement was called off, an invasion by foreign forces, the sanctuary fell into enemy hands... In order to protect the people of Ning City, he picked up his sword and vowed to be the strongest. This is a heavy responsibility and a long journey

Based on Team Shanghai Alice's Touhou Project. History revolves around the many events in the lives of two students from the Outside World - Maribel Hearn and Renko Usami. They are the only members of the "Hifuu Club Activity Record" who are looking for those hidden worlds as Gensokyo, the Netherworld and the Moon.