Jingai Kenshi wa Chikara ni Miserare Ura Meikyuu wo Kouryaku su ~Bakemono Atsukai sareta Moto Boukensha wa, Jibun dake ga Shiru Meikyuu de Hitome wo Ki ni Sezu Musou suru~

Jin is an adventurer so overwhelmingly strong that he can cut down a three-headed dragon with a single slash! Though he craves more power, he fears that becoming any stronger would turn him into a monster... so he retires from adventuring and returns to his hometown café, in Dagar! However, in the mountains behind his family home lies a dungeon said to grant one’s deepest desires...?!