In general, the 'end of kokoro story' might mark the final stage of a narrative arc related to 'kokoro'. It could be the end of a love story if 'kokoro' is involved in the theme of love, or it could be the end of a self - discovery journey. For example, if Kokoro was on a quest to find their true identity, the end of the story would show whether they achieved that goal or not.
Yes, it has a certain level of popularity. It has a unique story that attracts fans of the slice - of - life and supernatural genres. The complex relationships between the characters and the interesting concept of body - swapping make it stand out.
Well, it could be about many things. It might focus on the connection between Naruto and the Kitsune, exploring the heart or essence (kokoro) of the Kitsune in the Naruto universe. Maybe it delves into a story where Naruto has a special encounter with a Kitsune and they share some kind of emotional journey.