Idk this seemed kinda like a shitty way to end the arc, I know the he cant stay and the "plot"(kek) has to move forward but damn does this feel like every cop out harem ending where in other "harem" start mangas the author decides to have a single girl win when harem route seemed like a viable choice. At the very least the girls that had exposition within this arc should have joined the extended harem ie MON and the friends of the main cast like Vampire and Pot Plant. Like I said idk but this arcs ending just didnt feel satisfying rofl.