珍客

ちんきゃく

unexpected (but welcome) visitor; rare guest

noun

Example sentences

しかし僕（ぼく）だけではなく、もうひとり―いや、もう一匹（いっぴき）の珍客（ちんきゃく）がいたらしい。

However, it was not just me - there was one more person, no, one more creature visiting.