She didn't know it was him at that time, and he couldn't remember that it was her at that time. The pain of their first encounter continued after the hidden reunion. The intertwining of encounters and unfamiliarity merges into the fate of your love and my willingness, your strength and my weakness. When she decided to go deep into his rear, she didn't know that her own rear was already lost. And how can he, who is difficult to attack and easy to defend, find himself that he lost after they first met?