序盤

1. Origins, structure, and basic meaning

• Structure: In 序盤 (じょばん), opening 序 and phase 盤 combine to denote an early stage.
• Basic usage: 序盤 is the part near the beginning of a game, story, or process.

2. Common pitfalls and similar expressions

• Opening phase of a sequence
  • 序盤で marks the phase where an event occurs, while 序盤は contrasts the opening with later stages.