A free app for Android, by Genius Yaoi Studio Inc..

This game is the story of a guy who gets cat ears after making an offering at a shrine. To get rid of the curse, he must find and break the contract with the fox spirit, Kitsunegami. You can play this game in the following ways:

Story: The story starts when our protagonist is going home from work one day. He finds a strange shrine in the way and is led into it. He finds a box and is surprised to find that it is full of coins. He is offered some and prays to end the boredom. 

Gameplay: 

Our game starts with our protagonist seeing cat ears for the first time. He is confused and doesn’t know what to do. He is told to put a hat on his head and hide the ears. When he does that, a doorbell rings and he is told to go home. He is offered a contract by a fox spirit called Rihito and he is taken to the place where the shrine is. There, he finds a strange box and is told to look inside. When he does that, he finds the cat ears and is told to break the curse.