Goblin God, My Breathing Makes Me Stronger

On an ordinary day, Roy opened his eyes and found that he had traveled to the Western fantasy world of swords and magic, and became a newly born... Goblin cub? Roy opened his eyes, and a mechanical sound suddenly sounded in his mind [Ding! Keep breathing for 1 minute, physical fitness +0.01] Roy: "???" Is even trying to breathe considered an effort? Is this system serious? From then on, as long as he persisted in doing it, Roy would succeed in anything he did. Bite! If you keep eating for one minute, your constitution will be +0.1] [Ding! Keep walking for one minute, your physical fitness will +0.29] [Ding! Keep breathing for a day, and your physique will be +1]