A kakioroshi one-shot included in Hoshino Yukinobu -Debut 45 Shuunen Kinen- (星野之宣 ―デビュー45周年記念―). In celebration of Yukinobu Hoshino's 45th anniversary since debuting as a mangaka, he and his friend Daijiro Morohoshi collaborated to have their most famous characters finally meet!