この
この · kono · JLPT N5 · noun
this
ko = here-by-me (as in kore, koko) + no linker: this + noun
Japanese ko- words point at things near the speaker: kore (this one), koko (here), kono (this ...). Kono must be followed by a noun: kono hon = this book. Swap ko for so or a and you get sono and ano, both meaning that.