The Errand Arc:

Chapter 1 - A Vacation That Wasn't

• Chapter 1.1 - 2
• Chapter 1.3 - 5
• Chapter 1.6 - 7

Chapter 2 - The First Partner

• Chapter 2.1
• Chapter 2.2
• Chapter 2.3 - 4
• Chapter 2.5
• Chapter 2.6 - 11

Chapter 3 - The Road to Cherrygrove

• Chapter 3.1 - 6

Chapter 4 - Northbound

• Chapter 4.1 - 8
• Chapter 4.9

Chapter 5 - A World Beyond New Bark

• Chapter 5.1 - 9

Chapter 6 - The Boy on the Road

• Chapter 6.1 - 7

Chapter 7 - A Choice Made Twice

• Chapter 7.1 - 4
• Chapter 7.5 - 6
• Chapter 7.7 - 9
• Chapter 7.10 (Ravina X Cinder)

Chapter 8 - A House Full of Partners 

• Chapter 8.1 - 2
• Chapter 8.3 - 7 (Nostus X Daphne / Ravina X Cinder)