Search gender: all male female Yoruichi Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: yoruichi Katakana: ヨルイチ 3 Kanji: 夜一 Meaning: 夜Night. The time between sunset and sunrise. The dark period when the sun is setting. A metaphor for something quiet and serene. 一One. The first. Kanji for the number 1 (one). To be the most superior. To begin, to put things together. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Yoruichi Name Meaning, Kanji Variations.