To O Tomari Da Kara Mal Upd — Shinseki No Ko

Shinseki no ko no ie ni tomari da kara, mal (mail/message) o upd(shita) (親戚の子の家に泊まりだから、メールをアップデートした)

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Based on common themes found in similar titles and community discussions: Shinseki no ko no ie ni tomari da