Thunder of Heaven and Earth, immune to wind and fire, sacred lotus body, three heads and eight arms. I summon the Great Deity of the Three Altars and Seas, Nezha.
Fearless and undaunted, defying Heaven, an undying battle spirit, invincible as long as I am here. I summon the Undying God of War, Xing Tian.
Born of Heaven and Earth, a stone monkey of spiritual understanding, bronze head and iron bones, master of seventy-two transformations. I summon the Great Sage, Equal to Heaven, Sun Wukong.
Lu Yun, a tomb raider captain, transmigrates to Douluo Dalu and awakens his Martial Soul: the God-Summoning Mask. Each mask represents a deity from Chinese mythology, and wearing one grants him that deity's powers.
No harem. The protagonist isn't exactly a good person. For the sake of the story, the ages of a few characters have been slightly changed, and some characters' soul skills have been altered. (I'll never admit I just forgot while writing!)