Space Sheriff Gavan: Hero of the Darkside - Vol. 1 Ch. 1 - The Bloodstained Glory

[MangaDex]

 

[SMAXZO]

Wonder if Black Bootleg is related to the Bootleg in the Gokaiger crossover?

 

[TuanBom008]

Wonder if Black Bootleg is related to the Bootleg in the Gokaiger crossover?

According to the RAW I got, then yes, it somehow connected to Gavan Bootleg.