Now I'm curious about Agda's brother, how was their relationaship?
Agda always loved her brother more than anyone else, even more than her parents or Zib. There wasn't (and never will be) any way that anyone could be much more special for her than him, from start to end.
Edvin's case is similar to Agda's, he loved his younger sister more than anyone in the world, and he always loved to spend time with her anytime he could, even if it was a whole day together, or just some minutes before going to sleep.
Their relationship has always been the purest thing ever and it was much more sane Agda's relationship with anyone else from her family or between her social circle in general. The day he died...well, you don't wanna know how mentally unstable Agda has become since that day LFMAO, but she is very sensitive when anyone brings her brother into the topic, mocking or not, she reacts very easily towards it, normally in not a very good or friendly way.