In pre-modern Japan, the ie (家) system dominated. The ie was not just a physical household but a corporate, multi-generational entity that included grandparents, parents, children, aunts, uncles, and cousins — all often living under one roof or in close proximity. In such an environment, a relative’s child staying overnight was unremarkable. It was part of daily life. Children moved fluidly between homes of aunts, uncles, and grandparents for reasons ranging from help with harvest to attending festivals or simply escaping the heat of their own home.
While it appears in discussions across platforms like TikTok and AniDB , it is frequently associated with "OVA" (Original Video Animation) releases or specific manga chapters. Key Themes and Tropes shinseki-no-ko-to-o-tomari-da-kara.html
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