G-senjou no Maou -The Devil on G-String- Walkthrough (Sekai Project)

My Ex Sister In Law

This is a walkthrough for the English localization of Akabei Soft’s G-senjou no Maou by Sekai Project and TLWiki, adjusted for the all-ages edition. The walkthrough is based upon this Japanese version by Seiya Saiga. The game has 4 heroines, whereby 3 of them have both a good- and a bad end.


  • The Devil on G-String works with a chapter-based system. You can only proceed to the next chapter after reaching the required chapter end.
  • If you forgot to save you can always start the chapter again from the extras screen.

Tsubaki Miwa (Good end)

  • Something about Kanon…
  • Don’t be so dramatic.
  • (Title screen) Next Chapter (Ch. 2)
  • Make up a reasonable excuse.
  • Save slot 1
  • I can appreciate the thought at least.
  • She’s asking me for help.
  • Get involved with Tsubaki and her family.
  • Let it be.
  • Flattering.
  • Invest in Tsubaki.
  • Devote myself to Tsubaki.

Tsubaki Miwa (Bad end)

  • Load slot 1
  • I don’t like this woman.
  • She’s telling me to let it drop.
  • Let it be.
  • Annoying.

Kanon Azai (Bad end)

  • Load slot 1
  • I can appreciate the thought at least.
  • She’s asking me for help.
  • Investigate Usami and chase “Maou.”
  • Expose Eiichi’s lies.
  • Annoying.
  • Ditch her while I can.
  • (Title screen) Next Chapter (Ch. 3)
  • Save slot 2
  • I can’t say no to her…
  • I’ll go ahead and lie down.
  • No doubt about it.
  • I should listen to her.
  • It’s what I need to do.
  • Embrace her, and show my affection.
  • Save slot 3
  • Maybe she’ll feel better…

Kanon Azai (Good end)

  • Load slot 3
  • It’ll be like running away.

Mizuha Shiratori (Good end)

  • Load slot 2
  • I just tell her to go home!
  • No, I don’t think so.
  • Eh, it’s probably my imagination.
  • I’ll avoid the subject.
  • (Title screen) Next Chapter (Ch. 4)
  • Save slot 4
  • It’s certainly possible.
  • I should probably walk her home.
  • Call the police.
  • I should leave this to the police.
  • Save slot 5
  • That this isn’t my path.

Mizuha Shiratori (Bad end)

  • Load slot 5
  • To fuck Shiratori.

Haru Usami

  • Load slot 4
  • Nah, couldn’t be.
  • I’ll see her tomorrow.
  • (Title screen) Next Chapter (Ch. 5)