This chapter deals with the curious property of argument ellipsis (AE) observed in Japanese: anti-c-command requirement. It is argued that this requirement is derived by extending the movement theory of anaphora assumed in the previous chapters. It is proposed that AE cases may involve covert movement from the antecedent of a null argument to that argument in accordance with this movement theory. With this proposal, the anti-c-command requirement on AE is derived from the ban on downward movement, i.e., the Extension Condition. Furthermore, this chapter addresses how to deal with another anti-c-command requirement on AE: AE sites cannot c-command their antecedents. It is proposed, following Abe and Park’s (A NP-substitute approach to null arguments in Chinese, Japanese and Korean. Ms., Dongguk University. https://sites.google.com/site/jabeling27/recent-works , 2019) insights, that this constraint is attributed to the last resort nature of AE. Finally, it is demonstrated that the original anti-c-command requirement on AE exhibits reconstruction effects in much the same way as Condition C does and hence that these effects are uniformly explained under the proposed movement theory with the assumption that adjuncts can be late merged.