100円ショップ店員が異世界トリップした結果。 (Series) favorite_border

[DeepL Translation - needs review] Volume 1 Introduction: Akiumi Jyohara, a high school student and part-time worker at a 100 yen store, is suddenly summoned back to another world. At the request of a cute elf wizard, he sets his sights on defeating the Demon King by making full use of insignificant 100 yen store tools. ......?　A one-coin (without tax) battle fantasy of courage and wisdom begins!

(Translator: DeepL)