Qi Qi Wonder-元气奇事

The protagonist was originally a miserable office worker. Due to overtime work, he accidentally fell into a pit while walking at night and traveled to the world of Soul Knight. As soon as he landed, he was trapped into a dungeon by a "conscientious teammate" and faced the menacing monsters alone. In order to survive and return to the original world, the protagonist went deep into the dungeon and met many partners along the way, causing many interesting "strange things"...