Colleagues who are fluent in Japanese?

[MurariArt]

Hello Dear experts,
can anyone read, most likely this album written Japanese language.
A little comical situation emerged:
Showed the album 2 Chinese, said that most likely Korean
Found through a friend in America who read Korean told you that it's not Korean or Chinese or Japanese.
Now search for "happiness " here
Unfortunately in my linguistic bouquet of 5 languages has not entered any one of the above languages. So I will be very grateful proctoexea these aerolife!!!!

Many THANKS in advance!!!!