次第です
For this reason / therefore / that is why → used to formally explain the reason or background leading to a conclusion, decision, or situation
N1
Meaning
For this reason / therefore / that is why → used to formally explain the reason or background leading to a conclusion, decision, or situation
Formation
Clause (plain form) + 次第です
Noun + という + 次第です
Explanation
次第です is used to politely and formally explain how a certain result, decision, or situation came about.
🔸 次第です = explanation, not condition
The speaker presents:
background circumstances
reasoning
sequence of events
and then concludes with 次第です to mean:
“That is why this happened.”
Key nuances:
Focuses on logical explanation, not emotion
Sounds formal, calm, and objective
Often used to justify or clarify decisions
Common in announcements, notices, reports, and JLPT N1 passages
Unlike casual explanations (だから / ので), 次第です is:
more distant
more official
more explanatory than persuasive