蜜月

1. Origins, structure, and basic meaning

• Structure: 蜜月(みつげつ) denotes the sweet early period of marriage and can figuratively describe a period of very close relations.
• Basic usage: It refers to a couple's honeymoon period or friendly relations between companies beginning a partnership.

2. Common pitfalls and similar expressions

• 蜜月 as a relationship metaphor
  • 両社の蜜月 describes the two companies' close, cooperative relationship. いつまで続くか raises the question of how long that relationship will last.