神スキル【呼吸】するだけでレベルアップする僕は、神々のダンジョンへ挑む。 (Associated Names)

The story follows Lana, who lives in a country where every person is granted a skill by the queen on their 15th birthday. Lana is given the skill “Breathing” (Kokyū), a skill he has never heard of, but he has always dreamed of diving into a dungeon as an adventurer. The skill is basically a…