Who is that character? I think we'll get to see what happened when Shiika was living with her relatives, and where they will go now that they've reconciled. Her side of the story, so to speak.
Chapter 6 is out with sfx translated! We're working on sfx of old chapters too (only ch.2 is uploaded for now though...), but it'll take a while. Feel free to contact me on mangadex to get access to our psd files if you want to use them for your translation. (Please credit "puppy" as the redrawer in that case.)