[Kishibe(岸辺)] Kyou Kara Hajimeru Kuromajutsu (今日から始める黒魔術)[2012-01~2013-12]
From (respectively):
Code:
Comic PLUM FE (コミック プラム ファンタジーエロス) - Vol.06 [2012-01-14]
Comic PLUM DX (コミック プラム デラックス) - Vol.15 [2013-05-28]
Comic Anthology QooPA (コミックアンソロジーQooPA) - Vol.04 [2013-12-27]
Rather difficult to track as it ran in three different magazines from the same publisher.
I am not sure if he reverts at the end of first chapter, there is a sequel chapter titled Kyou Kara Hajimeru Makai Seifuku (今日から始める魔界征服).
Contains loli. Except for the third chapter which is mixed the rest is full loli.