Sometimes Internet is not awful place ....

I found something interesting:
Movement for a free Earth

On the human level, we need new perspectives on how to live together without fear and violence and without the traumatic remnants of our historical origins, especially in the more intimate zones of sexuality, love and partnership, because the deepest (and most concealed) crisis area of our time is the relationship between people. There can be no peace in the world as long as there is (latent) war in love. Fifty years ago we achieved some goals in the time of the student revolution. But then the struggle began inside the groups, the struggle for the right ideology, for recognition, power and sex! Nobody was yet prepared for this. Nobody knew how much the external violence of the system and people’s inner struggles came from the same source. If we want to succeed today, we must build places where truth and interpersonal solidarity can be learned.

Note, author is old enough for seeing 1968 in person .....

of this, I of course noted little horse thing right on the same site:

Vision

We research an alternative to the traditional methods of horse husbandry. Following the idea of cooperation, we offer them conditions in which they can live in a natural way, moving freely and expressing themselves without unnecessary restrictions.

Horses are very powerful animals that help us to work deeply on ourselves. Instead of manipulating or violently breaking their will, we learn how to perceive and connect to the soul of the horse.

yeah .... this.

Also, I found by chance (called google search for "interspecies love japan") book called "Full metal apache - transactions between cyberpunk Japan and avant-pop" (2006).

It has such passage:

There are three ‘‘forbidden love’’ narratives in Yanagita’s Legends
that must have inspired Murano, beginning with the romance between a girl
and a horse described in Legend 69:

Once upon a time there was a poor farmer. He had no wife but did have a
beautiful daughter. He also had one horse. The daughter loved the horse,
and at night she would go to the stable and sleep. Finally, she and the horse
became husband and wife. One night the father learned of this, and the
next day without saying anything to the daughter, he took the horse out
and killed it by hanging it from a mulberry tree. That night the daughter
asked her father why the horse was not anywhere around, and she learned
of the act. Shocked, filled with grief, she went on to the spot beneath the
mulberry tree and cried while clinging to the horse’s head. The father, ab-
horring the sight, took an axe and chopped off the horse’s head, which
flew off to the heavens. It was from this time on that Oshira-sama became
a kami. The image of this kami was made from the mulberry branch on
which the horse was hanged. (49–50)

interesting ... legend .....