Yuushachan No Bouken Wa Owatteshimatta 3 Best 2021

Yuushachan no Bouken wa Owatteshimatta — 3 Best

The trio is failing. The "eraser" effect starts taking hold—their hands become translucent. They are becoming background characters.

Introduction

• Yuusha-chan (勇者ちゃん) = "(little) Hero" (often a cute or diminutive form)
• no bouken wa = "'s adventure"
• owatteshimatta = "has ended / came to an end" (with a sense of finality or regret)
• 3 best = likely means "best 3" or "top 3"