生き残りゲーム ラストサバイバル (Series) favorite_border

[DeepL Translation - needs review] Volume 1 Introduction: Last Survival, a competition in which 50 elementary school students compete in a single event until there is only one last person left. This time, it's a hellish survival walk to see who can walk the longest. The winner who remains until the end will have his or her wish come true. Riku Sakurai, a 6th grader, aims to win the competition for his sister who was in an accident, but can he save her?　Don't miss the surprise ending!

(Translator: DeepL)