That's the end of Kohagi Hime and her daughter story so far, the father is still alive but you know what happened to her.
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Who is yamamoto?

Base +2, paweu13000 +6

As you can see in the first page, Princess Kohagi is wearing a gym uniform with the word "Yamamoto" crossed on it, so this Yamamoto is her latest victim with her personality excreted from her and the body itself is transformed into a mop, and now she's being used as a onahole on Princess Kohagi. With how small Princess Kohagi is and the gym uniform fit her perfectly, I think the victim is supposed to be a middle school girl.
I forgot to put some context on the uploader comment/in the page itself. I'm sorry for this inconvenience, I'll try to do better next time.

Base +4, xghazu +6, Shade080 +8

(huh?)(小猫叫)

Base +1

...2? Where's the first part?

Base +6

田中脊髓剑（有端联想）

Base +3