Binbougami ga!

Synopsis

Momiji ends up summoning the masochistic dog god, Momo'o Inugami, and has him transform into a puppy so he can get close to Ichiko and attempt to steal her fortune. However, Momo'o finds that getting the fortune off of Ichiko isn't as easy as it looks. As Momo'o observes Ichiko's behavior, he notices her personality is different when reading letters from Suwano. That night, as Momo activates a Misfortune Item to spread misfortune, the box containing Suwano's letters falls from the top of the desk, and is thrown away by the cleaners the next day. When Ichiko learns of this, she goes to the trash dump and spends the entire night searching for the box, much to Momo's surprise. Against his better judgement, Momo finds the box for Ichiko. As Momo deduces that Ichiko may not be such a bad person after all, his cover is blown when he reverts to human form, prompting a swift punishment from Ichiko.

(Source: Wikipedia)