I was the weakest of the four heavenly kings. BK Books

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

Oni-o Langa went up to the Four Heavenly Kings of the Evil World with his efforts from the lowest species called goblin, but other Four Heavenly Kings of the Evil World despised him as the 「 Four Heavenly Kings' Weakest 」. Then, on the day when the brave man attacked the Evil World, Langa died by conspiracy. Langa, who was transformed into a human while retaining the memory of his previous life, began to make an effort to live a peaceful life that was different from his previous life in which he engaged in battle. However, Amira, his former confidant, appeared there and also faced the enemy who had fallen him. Will his wish for peace come true?