Yeah its complicated, thus I stick with my original statement for now. I still think he right one is Sena's mother because <insert random meat joke> and the left one Kodaka's because she looks like Kobato. Plus Kobato and Sena really look related. (Might be because both of them are blonde though
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Those who forget about the past are condemned to repeat it - Santayana
Sidenote: I'm seemingly too dumb for my current keyboard, so if you see the same character twice in a row, when it doesn't belong there just ignore it.