The First Night with the Duke S1E4 — We Need a Backup Plan

8.7

The First Night with the Duke•Season 1•Episode 4

We Need a Backup Plan

8.7/10 · 39 votesJun 19, 202563 min

Ranked #3 of 12 in Season 1•+0.2 vs season avg

Yi Beon's persistence reached Cha Sun Chaek's family. Cha Sun Chaek encountered a foreigner. Do Hwa Sun persuaded the Queen Dowager to do something in her favor.

Previous episodeE3 · Something Always Happens on a Moonlit Night Next episodeE5 · There is No Such Thing as "As It Was"

Seasons1

Season 1 Episodes12

Reading a Book is Inviting Another's Life into Yours still

Reading a Book is Inviting Another's Life into Yours

The First Night in This Lifetime still

The First Night in This Lifetime

Something Always Happens on a Moonlit Night still

Something Always Happens on a Moonlit Night

We Need a Backup Plan still

E4 8.7Now viewing

We Need a Backup Plan

There is No Such Thing as "As It Was" still

There is No Such Thing as "As It Was"

Playing the Field and a Disguise still

Playing the Field and a Disguise

The Inflection Point still

The Inflection Point

The Shadow that has Returned still

The Shadow that has Returned

The Wounded Things still

The Wounded Things

Once Again, Because of Fate still

Once Again, Because of Fate

A Dream or an End? still

A Dream or an End?

Into the New World still

Into the New World

Cast18

Seohyun

Seohyun

Cha Seon-chaek / K

TAECYEON

TAECYEON

Prince Kyungsung / Lee Beon

Kwon Han-sol

Kwon Han-sol

Cho Eun-ae

Seo Bum-jun

Seo Bum-jun

Jeong Su-gyeom

Chi Hae-won

Chi Hae-won

Do Hwa-seon

Lee Tae-seon

Lee Tae-seon

Prince Seonghyeon

Seo Hyun-chul

Seo Hyun-chul

Cha Ho-yeol

Yun Yoo-sun

Yun Yoo-sun

Yoon Deok-jeong

Lee Sang-un

Lee Sang-un

Cha Jang-ho

Kim Shin-bi

Kim Shin-bi

Cha Du-ho

Yoon Jung-hoon

Yoon Jung-hoon

Cha Se-ho

Song Yeong-jae

Song Yeong-jae

Lee Beon's Head Servant

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Episode Summary

"We Need a Backup Plan" is episode 4 of The First Night with the Duke season 1. It scored 8.7/10 from 39 votes, ranking #3 of 12 episodes this season (season average 8.5). It aired on June 19, 2025.

Next: E5 · There is No Such Thing as "As It Was"Best of Season 1