User blog comment:Crimson and Darkness/Volume 25 discussion blog/@comment-30230931-20180527235137/@comment-27083298-20180528003417

If Shin DxD is a different series then the Azazel Cup would’ve end, but it didn’t. Because Ishibumi says Shin DxD continues after Volume 25.

If Dragon Ball Super is different series, then why the summary says “Dragon Ball Super follows the adventures of Goku and his friends after defeating Majin Buu and bringing peace to Earth once again”

This proves that Dragon Ball Super is the same series as Dragon Ball Z with a different name.