Weird chapter, seems like a sample but is too many pages the new apartment and them crying an hugging made me think the 2 left or were kicked out from the father of the family, but then we see her fucking with him so to make him think he got her pregnant maybe the new apartment is them preparing to leave after the baby is born? or they got found out later? Rika talking with the father could be him explaining he knows everything or maybe he wanted to fuck his son GF, she refused and talked and the family broke apart for that reason