User blog comment:Crimson and Darkness/Shin DxD 4 discussion/@comment-39047410-20200219231529/@comment-39047410-20200219232546

Innovate Clear XxX:

Mitsuya and Ajuka meet and Mitsuya says that all the Longinus and Super Devils need to all gather and fight together or else they'll all die.

The last line of the vol is "from now on begins the story of the collapse of invincible team DxD".