<p>they both start with the main character (Ichigo and Yusuke) being separated from their bodies and becoming souls. </p><p>The Bount arc (bleach) and the Chapter Black (Yu Yu Hakusho) begin the same way. Ichigo and friends are attacked by unknown enemies on the orders of Kisuke Urahara (ichigo's mentor). Yusuke and friends are attacked by unknown enemies on the orders of Genkai (Yusuke's mentor). </p><p>The Lost Substitute Shinigami arc (bleach) and the Chapter Black (Yu Yu Hakusho) main antagonist were their predecessor Kūgo Ginjō (bleach) and Shinobu Sensui (YU YU Hakusho). </p><p>Three different worlds. Bleach Has Human world, Soul Society, and Hueco Mundo. Yu Yu Hakusho has Human, Spirit, and Demon Worlds. </p><p>Main characters both are connected to all three worlds. Ichigo is a human (Human world), Father is a Shinigami and He is a Substitute Shinigami (Soul Society), and He has an inner Hollow (Hueco Mundo). Yusuke is a human (Human Worlds), he is a Spirit Detective (Spirit World), and his father is a demon (Demon World). </p><p>Thats all I can think of off the top of my head. But if U can think of others let me know. </p>