Just played through Yume, Mokomoko erm Komomo, and 1/3 of Mare's route.
The Japanese contained in this game isn't that high in difficulty, quite simple actually. A junior high schooler, or even someone in primary (I mean a local) would have no issues with this. Someone who has passed 2級 of 日本語能力試験 would have absolutely no problems going through this game. I haven't touched the language in almost 4 years and was able to go through it smoothly with a handy dictionary.
With that said, just wanted to point out that the translation for the original game (not EH) has many (translational) mista