I came across this visual novel by qureate and immediately picked it up. Mikos are nice, cat girls are also nice, and combined, that's when you get my money.

The story setup of NekoMiko is pretty good too. A guy surrounded by misfortune visits an old shrine and meets the titular neko mikos, Kaede with the bigger chest and black hair, and Ayame, the tomboy-looking girl. They try to remove his misfortune with a spell, and fail. So, they move in with him to help him out. That's when things get really magical. But perhaps an actual summary would help here. You know, for people who enjoy hentai for the story.

"Nekofuku Shrine is a small shrine located in a corner of Akihabara. It is dedicated to 2 cats that are said to bring in good fortune and expel any misfortune. 

The legend goes that 2 cats came to help the revival of the town after a huge fire burnt it down a long time ago. Although the ancient and honorable shrine has stood in a quiet side street of Akihabara for hundreds of years, its surroundings have developed, leaving it with no worshippers for many years. 

One day, a very unfortunate young man came to visit the old shrine.

The 2 cat-eared girls in the appearance of shrine maidens, could not stand by and not greet their first worshipper for many years. Especially one riddled with such misfortune. 

The 2 cat-eared girls start living with the young man to rid him of his misfortune, but...

It turns out that this is the start of a somewhat eventful and sexual cohabitation between the young man and the 2 cat-eared shrine maidens!"