Well he said he hadn't played it in a long time so he could have played it when younger. But then again Korean and Japanese always have younger girls fall in love with older age MCs or have an adult woman fall in love with a young MC.
Unless he meant their personality. But at this point I just hope it's not a harem.
I'm pretty sure it's MTL then edited minimally for words that don't make sense. Honestly having trouble reading it too, and I had to go through the raws to reread to finally understand it.