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According to Wikipedia, Bizenghast is a manga influenced comic written by M. Alice LeGrow. The story follows Dinah, an orphaned teenage girl who lives in the haunted town of Bizenghast.
Manga Motion Comics - 2009 Bizenghast 1-2 was released on: USA: 1 January 2009
You can read "Bizenghast" Volume 6 online through various digital comic platforms that offer manga, such as ComiXology or VIZ Media. Additionally, it may be available on subscription services like Kindle Unlimited or through library apps like OverDrive. Always ensure you're accessing content legally through authorized sources.
Its possible. Since Shounen Jump has a Japan-born root, you'll have to know how to speak and understand Japanese. The chances are not high of getting into Shounen Jump, since its extremely popular and seeks great artists with great stories to compliment their art. Besides Shounen Jump, there's also other manga publishing anthologies. Answer: First you need to have a story in mind. If you can draw, then go ahead, if you can't, you must find an artist for your manga. If you are fluent at Japanese, go ahead, if you aren't, find someone that can translate your manga to japanese. Then I don't know, you must travel to Japan or find some way like send e-mails to Shonen Jump. If they accept your manga, you have acomplished your dream.