Tensura Nikki Tensei Shitara Slime Datta Ken

Chapter 2: Diary No. 2
Chapter 1.2: Diary No. 1(Second Half)
Chapter 3: The Ways To Spend A Break
Chapter 1.2: Diary No. 1(Second Half)
Chapter 3: The Ways To Spend A Break
This talks about Rimuru and his friends spending their free time doing something fun together. A spin-off from the main series "That Time I Got Reincarnated as a Slime"