The Necromancer Maid is a Manga/Manhwa/Manhua in (English/Raw) language, Comedy series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

The Alchemist Kurakazu Rintarou, saved a young girl who fainted in the Forest of Corpses.
The name of that girl is “Chloe La Foley”. Her specialty is housework.
The story unfolds on the two's “Slow Life” under the same roof in this Isekai Maid Fantasy!!