City: I Accidentally Picked up the Inheritance, and My Seniority Skyrocketed

One day during a spring outing, an ordinary young man saw a girl slipping into the water. He acted decisively and bravely to save the girl. Unexpectedly, he choked on the water and fell into coma. When he woke up, he was already in a mysterious cave. There were two skeletons in extraordinary clothes and a fruit tree with small red fruits. When the young man's companions and the search and rescue team found him, he had undergone earth-shaking changes. Let's see how he stirs up trouble in a world where he was just a bystander! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.