Total Recommendations: 1
Both series focus around the main character solving "oddities" or supernatural phenomena that occur with other characters. There are also parallels between the mentors of each main character. Yuuko (xxxHolic) & Oshino (Bakemonogatari) both provide insight as to how Watanuki (xxxHolic) & Araragi (Bakemonogatari) can solve the ailments spotted. Main difference is that in xxxHolic the solving of these oddities is more of price for service to customers, whereas in Bakemonogatari, the service is free of charge and deal with the protagonists close friends. Still both are enjoyable to watch and offer a lot of humor.