Doufu Mayoi 
Black Summoner: Volume 17 [EPUB ebook] 

It’s finally time for Rion, Dark Mel, and Bell to have their fill of school life! With many new and returning characters to make friends with, how will these meetings shape their time at school?

But the girls’ enrollment has come with several goals and caveats. When a Divine Pillar goes missing, it raises the question: whodunnit? And how do they prevent the Divine Pillar from wreaking too much havoc? Also, how will the girls handle fulfilling their principal’s request to forge a new road without discrimination for the school?

Meanwhile, Kelvin is regrettably stuck on the outside, having to prepare for a future match with the very school his daughter and little sister are attending. How will he deal with all that, to say nothing of his intense case of empty-nest syndrome? All this and more in volume 17!