Wagnaria!!

Yachiyo, Kyouko, Satou... and the Returning Mr. Otou (1x3)

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Yachiyo, the samurai sword-carrying waitress, reveals that she started carrying it to ward off bullies back in elementary school. At this time she encounters Kyoko who agrees to act as a bodyguard in exchange for Yachiyo's lunch. Otou Hyougo, the true restaurant manager, returns to the store after another unsuccessful search for his lost wife; his wife, who has the world's worst sense of direction, got lost years ago while out shopping.