Adayusu

The Mysterious Adayusu is an offensive-type Teigu wielded by Horimaka before his death. It has the appearance of a scythe.

Synopsis
Adayusu was presumably one of the 24 Lost Teigu, since it was lost in a civil war and exhumed in the rural countryside. Its true capabilities weren't seen as Horimaka was killed by Akame before he could even use it.

The fate of this Teigu is unknown, since Mine and Akame simply left the Teigu after killing Horimaka in favor of assassinating Bolic.