xxx (nicoseiga530226)
Artist. Stopped posting to NicoSeiga in 2014 and their blog posts became more sporadic.
Resurfaced in 2020 as Jiko Mujun.
On September 29th, 2020, his identity was leaked following a series of investigations. His name, address, and face were all revealed by an artist named Yayu. He can be seen during a broadcast of Amadora BD, a Portuguese comic festival.