A story about two-way redemption for urban adults and two equally matched heroines. The ultimate contrasting bond between a top female lawyer and a cool female professor in college. One of the two walks on the edge of the rules, with sharp rationality and decisive killing; the other sticks to the square inch of the podium, is gentle, transparent, and has insight into people's hearts. From the gradual understanding of the unexpected intersection, to the separation of each other's hearts layer by layer, and finally breaking the isolation of their respective life islands, they became each other's only preference and retreat between secular rules and spiritual ideals.