Yeah that's what I thought as well.So, is Aika chan a siscon who hates anyone that gets to close to her onee chan? She definitely doesn't like Riko, could it be because Yuuka is always talking about her (Riko) at home and now she hates her guts. I mentioned this in the previous chapter, but there may be a possibility that Yuuka actually likes Riko romantically (like the moving in joke that she made). All I know that this mangaka is certainly cooking. I am so looking forward to the next half of chapter 2
Like yeah..Although Riko is a lolicon, I somehow hope she can fall in love with Yuuka. They already perfect for each other!