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Tear Jerker: Retro Game Master
The season 4 finale ended with Arino requesting time off for childbirth leave. The sequence that follows is as if he's retiring for real, with him turning in his uniform (to the cleaners) and walking away in street clothes while wistful music plays. Even though the narration assures us that he'll be back, it's no less emotional to see the beleaguered Arino finally free, even if only for a few months.