Not in Japan.
I was thinking the exact same thing.
Same for me even if it is fictional I can't get turned on by that sh*t it just says a whole lot about me as a person if i do
It is incredibly illegal in Japan. The idea that the legal age of consent is 13 is a complete misinterpretation of the actual laws. Japan actually has some of, if not the most strict laws in regards to sex/dating of any developed country.
The yoyo one was kinda weird , the seme was 13 years old .. that's illegal ._.