A Plague Tale Requiem Walkthrough Chapter 1: Under A New Sun

Under A New Sun starts off with a quick recap of the events from the previous game. The scene then changes to the siblings running away from something. The entire first chapter serves as a tutorial for the controls of the game.
Video Game News, Reviews, and Features

Chapter 1: Under a New Sun - A Plague Tale: Requiem Guide - IGN

Guide for A Plague Tale: Requiem - Chapter XI - The Cradle Of Centuries

A Plague Tale: Requiem: Chapter 5: In Our Wake guide

Plague Tale Requiem: Chapter 1, Reach the city - walkthrough

A Plague Tale: Requiem Trophy Guide •

A Plague Tale Requiem: Raging Fire Find the Others Guide in Chapter 1 Under the Sun - Games Fuze

How long is A Plague Tale: Requiem? Full chapter list and story length

A Plague Tale Requiem Walkthrough Chapter 1: Under A New Sun

How to Start New Game Plus in A Plague Tale: Requiem - Prima Games