Assuming "shinsekinokotootomaridakara" is a Japanese phrase or a romanized compound—likely composed of shinseki (親戚, relative), no (の, possessive), koto (こと, thing/event), o (を, object marker), tomaru/ tomaru (止まる/泊まる—stay/stop) + dakara (だから, therefore) —this narrative treats it as a short phrase meaning roughly "because the relatives' matter/visit involves staying" or "since it's about relatives staying over." The goal is to teach reading, grammar, cultural nuance, and how to verify and use such a phrase.
Roughly translated, it evokes the sentiment: "Because the things close to us stop, [they become real/precious]." shinsekinokotootomaridakara verified