Great game. It's a good sequel to Koko and I'm loving the yandere, monster girl vibe this series is going with. I recommend trying this game if you enjoyed Koko or like yanderes.
*SPOILERS*
The ending has a tragic twist. You're in the shoes of both a father and husband, but sadly you're not able to protect your family no matter what you do, this would crush any man's spirit and if there's a sequel I think Seiichi will likely be depressed, still grieving his loss.
The great thing about the ending is despite the tragedy, I was left with a sense of mystery and I don't really know what happened or why things played out as they did. Could those events have been avoided? Perhaps by sending Reiko to Pascal's place to spend the night then send her off to a boarding school for half humans in the morning? Was Koko right to warn us of Reiko because the children of her species are a threat to their parents and only she knew that? Or is it that Reiko learned something she shouldn't have and it turns out Koko is so possessive of Seiichi that she'll eliminate anyone just to keep him to herself even if that means killing her own child? Perhaps both scenarios are true? Sadly you cannot sacrifice yourself to save both of them to defy their question.
I truly do not know. This is an ending that left me with more questions than answers the only thing I know for certain is that Koko tried to tell Seiichi that she wasn't human but he refused to listen when he really should have listened, to try to understand her and the situation better. Had he done that it may of been possible to save his family and keep it in one piece.
I would like to see a third installment of Koko so that I may learn the answers to some of these questions and to see where the story goes. If it turns out that Koko really is so possessive of Seiichi that she will eliminate anyone to have him then I wonder what his options will be in the sequel or if he will learn to accept his wife for what she is?
All I know is that I hope this won't be the last we hear of Koko.
I also want to thank the developer for taking the time to make an English version to your games, I enjoy them and I wish you success!