By Steel Beam | 4 : Idol Dies

Karin was found dead at a construction site, her face completely pulverized by fallen steel beams after a severe storm.

A ghost known as Steel Lady Nanase —a faceless woman wielding a massive steel beam—begins appearing in Makurasaka City. 4 : Idol Dies by Steel Beam

The story is covered in the early volumes of the manga, available on Kodansha's K MANGA platform . Karin was found dead at a construction site,