When worlds in various dimensions encounter world line collapse, the world managers go to the "World Correction Company" for correction services. The company sends people to make corrections based on the degree of collapse and risk level. The two have long been ranked first in the "Best Employee" personal list. Because of their competition for the first place, the two dislike each other. However, because the company faced an unprecedented two-person task, the two were forced to team up to deal with it, and were later "arranged" by the leader to become long-term teammates.
Mission: Work hard and be tolerant to others.