Kanojo no Tokutouseki

On the outskirts of town, there is a restaurant headed by a curious young man. His sole patron, an elusive masked woman who always eats for two, piques his interest. Wondering how a slender woman could possess such an appetite, he suspects that she is sneaking meals into Tupperware containers. However, when he eventually decides to confront her about it, the truth surprises him. [Written by MAL Rewrite]