[Anime Crossover] The Smiling Reaper

The Happiest People in Soul Society: Zaraki Kenpachi: "Obviously, it's a good fight. And the perfect opponent would be Fuji!" He grabbed his Zanpakuto and headed off to find Fuji... Kusajishi Yachiru: "The happiest thing is eating konpeito with Fuji forever!" She pulled out a candy and started eating it with a big smile... Hitsugaya Toshiro: "The happiest thing would be for Fuji to stop dropping by Squad Ten all the time. Every visit just gives me more work." Little White frowned, doing his best not to think about all the unpleasant things. (Hang in there, Little White!) Matsumoto Rangiku: "Of course, it's when Fuji drops by every day, so I don't have to work. What bliss!" Ichimaru Gin: "Whatever makes Rangiku happiest makes me happiest. Actually, smiling at Fuji is a pretty nice way to pass the time too." He smiled... Kyomizu Shunsui: "The happiest thing would be for Fuji not to show up wherever I am. Whenever he's around, the beauties never even look my way. Modern girls just love those slender, pretty boys. Sigh..." Captain-Commander Yamamoto: "If only Fuji would take anything seriously, I'd be the happiest man in Soul Society. But that's a tall order!" Kuchiki Byakuya: "..." (Byakuya, say something already! You're killing us with suspense!) The corners of his mouth lifted as he gazed at a pale figure in the distance, then used Flash Step to move toward them... Premise: