The character backstory involving an adult marrying and getting his adopted younger sister pregnant is morally wrong and universally unacceptable regardless of cultural context.

“In this particular game, uh, Alex has a second cousin slashadopted sister who he married and got pregnant in the story. And um, Capcom has already apologized for this, but there are some people who are defending this, saying, "Well, in Japan, this is pretty normal and common to to do this with your ”