Translation:Please do not return my magazines to the library.
Why not just Listen to the Japanese instead of trying to read it if that bothers you so much? Honestly, it can be frustrating; even native speakers agree we don't always know the meaning without using kanji (and we don't exactly get context here). There are students at different levels using this, and for beginners, the lower elementary school level is probably easier. Until they get furigana or an option to use kanji set up.