18+ Sore wa Rekishi ni Kakanaide!

An Ancient Egyptian scholar is revived and conned into "tending" to an otaku. Afterwards, she lives in with him... sexy archeological endeavors ensue.

(Source: MU)

Included one-shots:
Okaasan wa Shinpaishou (My Mother's a Worrywart)
Tatta Hitoban de Engi no Haba ga Gungun Hirogaru Lesson-hou (A Lesson of Steadily Widening Acting Skills in Just One Evening)