Board Thread:Questions and Answers/@comment-33609000-20171110034709

So I just started season 2 of Assassination Classroom and they finally showed Nagisa's father and they were talking about his mother and how she's strict and all but then Koro sensei came and interupted their conversation I was wondering if they explain Nagisa's past and life with a little more detail in the anime or if it's just through the manga? And how different are the anime and manga? 