I'm Gonna Annihilate This Land is a Manga/Manhwa/Manhua in english language, Action series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

Annihilate this land. Cleanse it of all impurities. "To think I reincarnated as a bald skeleton who can't even poo." The Skeleton king, the most wicked demonic king who the gods find bothersome. I was sealed after being scammed by the gods with a contract promising to turn me into a human. This is what they said. "Saint, have you awakened?" This warmth and soft texture... A human body? And I'm a saint? "Oh my, why is the baby saint in such a good mood today?" "Saint, this is the toy of that loathsome skeleton king. Do you want to try destroying it?" "The great gods crossed the line and gave everything back to the skeleton king who challenged the gods." ...Annihilate this land. I will become the saint, make the gods eat shit, and annihilate them.