Tobenai Saikyou no Dungeon Seeker

Read Manga Tobenai Saikyou no Dungeon Seeker / 飛べない最強のダンジョンシーカー/ Tobenai Saikyo No Danji Nshika Tenku Dan John Koryaku Ki / The Strongest Dungeon Seeker Who Cannot Fly

In the modern era, enormous dungeons have suddenly appeared in the sky. Alongside this phenomenon, people have gained the ability to manifest “wings,” allowing them to fly up and challenge these aerial dungeons.
However, there is one exception: Kojiro Kijiya, a high school student who is the only person unable to generate wings and cannot fly. Branded as a “dropout” and “failure” by society, he refuses to give up on his dream of conquering dungeons.
Now begins Kojiro’s dungeon conquest chronicle—the story of how someone who cannot fly will challenge the sky dungeons!