A manga anthology based on the DMM Games/Nitroplus browser game Touken Ranbu -ONLINE- by the editorial department of shoujo magazine Hana to Yume.
From DrMaster: Four of China's supremely skilled assassin/detectives serve only their Master Zhuge Zhen-Wo - The Little Flower, who in turn is head bodyguard and advisor for China's all-powerful Emperor. The Four Constables include: Yayu Sheng - The Emotionless Cripple is a master of weapons and devices, Yuxia Tie - The Iron Hand possesses incredible chi and can stop the sharpest blades with his bare hands.
The WeChat QR code on the mysterious invitation leads to a popular survival game in which the winner gets a chance to fulfill his wishes... [Original Manhua](https://manga.bilibili.com/detail/mc25867)
A revised edition of the previously released [Nippon Furusato Chinbotsu](https://www.mangaupdates.com/series.html?id=50903) anthology (2006).
[Original Webcomic](https://www.kuaikanmanhua.com/web/topic/17217)
NOTE: Since there's 5 years between volumes, there's a small chance it may be ongoing.
Young students of the very select "Ninjas of Iga School", Hana Attori decided to leave her clan to find and fight the murderer of her father and her sister. Only here, this assassin is none other than Oda Nobunaga ... the greatest lord of Japan! Little Hana Attori does not know a lot of things, but she knows that you cannot go to war alone against a country ... So it is accompanied by her friend Goro, Fumio the artificer and Shifu the cowardly sorcerer that she is going to organize her clandestine struggle ...