Tanaka and Zenzai are new hires at the same company and in the same department. Though they're interested in each other, they keep their feelings hidden, spending their days as "close colleagues." However, a slight misunderstanding causes their relationship to gradually begin to change... (Source: Kadokawa, translated) *Notes: \- Originally self-published on Pixiv and published as a doujinshi, it was picked up for commercial volume publication by Kadokawa. \- Includes 1 extra chapter.*

Replicants are beings made by humans in their own image. Such a replicant boy called Kip and his childhood friend Sierra somehow escape from Mars' concentration camp and together they seek a young man that escaped before them. However, what follows is their encounter with a man called Nailheart -- a replicant who hunts other replicants.

https://www.cmoa.jp/title/317791/