/jp/ - Otaku Culture

I have a question that I'd really appreciate an answer for. So recently I started learning the Kanji's from scratch using KanjiDamage and due to a post on another thread I only bothered learning the onyomi and not the kunyomi. My question is should I bother learning the kunyomi with the onyomi or worry about it later? as most of the screenshots for untranslated visual novels that I the sentences seem to be written in hiragana and even though I can pronounce most of the sentence I have no idea what they're talking about.