After years of storage, no. 7101 was restored in 1936 at the Ōmiya factory (now the JR East Ōmiya General Rolling Stock Center). During the restoration, a pair of railway enthusiasts examined the engines and determined that the 7101 was originally Benkei (Horonai Railway no.
Locomotive no. 7101 was reactivated in 1936 at the Ōmiya factory (now the JR East Ōmiya General Rolling Stock Center). During its reconstruction, a team of railway enthusiasts examined the engines and discovered that the 7101 had been initially designated as Benkei (Horonai Railway no).