I haven't read the first two chapters, but honestly this stands alone anyway. Especially if one likes Milfs getting done at the same time by their daughters toy boy (from another world). The fantasy is slight, but the Milf sex is totally worth it.
If you like big booby MILF's with alot of ahegao looking faces, than can't go wrong with this one. The author hasn't disappoint yet. Also although says NTR you dont really feel the NTR in this really.
Another work and part of this series from Fukuyama Naoto was an instant purchase! Amazing art as always and his ahegao faces are so good! I hope we get to see more of the other mother in a next part!