Two In Harmony (Kimetsu no Yaiba Dual SI featuring TLWillow and Xan, Author of the Nightmare)

Cooperation: the process of working together toward the same end. People working together can accomplish more than a single person alone, and sometimes, the result of that cooperation is greater than the sum of its parts. Though not all are best suited to working with others, time will tell if two in harmony can truly surpass one in perfection. (KnY Dual SI featuring TLWillow and Xan, Author of the Nightmare)