After eight years of mutual feelings, they finally became intimate in the seventh year. After the older brother moved out of their family home, they maintained a routine of meeting every three months. However, considering their future and societal appearances, they made a pact to not see each other for two years—testing whether either could find a new romantic partner during that time. But due to their deeply twisted affections for one another, new relationships proved impossible. In the end, the two promised to live together in Tokyo, starting a new life as lovers.