Lourianne Tome is a mildly talented, underachieving, slightly lecherous summoner who wants nothing more than to live a simple life away from her father's expectations. Those dreams are waylaid when a madman knocks her carriage off the road and sacrifices her to power a summoning. After a fateful encounter with a powerful elemental, Lou becomes something other than human and embarks on a journey to live happily and bring a little amusement to a god tired of the world's status quo.

This is a mainly slice of life story with a bit of action/adventure. 

A few tags that need to be added here: 18+, yuri (wlw, lgbt), NSFW (and it doens't really have dedicated chapters, it is very much a part of the story), shapeshifter (and everything that comes with that). 

Fair warning.