Thread:ShinoharaHiroko/@comment-31290196-20170815014117

Hey Hiroko-san, just wanted to tell you I considered what you said but see this here-

https://www.theguardian.com/world/2015/dec/16/japanese-court-rules-married-women-cannot-keep-their-surnames

Also here's an answer from Quora

Current Japanese law requires spouses to have the same surname. Typically the wife takes the husband's name, but occasionally it happens the other way around (typically in a prestigious family with only daughters and cases of succession in a family run business).

This is the reason why in the Tachibana family, Marika's father had to take the name instead.  