Both time-traveled characters ended up as villainous henchmen.

Through sheer luck—the ultimate ritual in the transmigration world—He Nian successfully transmigrated, and it was a fission-style transmigration, specifically the version involving a proctologist. However, his new identity was slightly problematic; why were he always playing villainous grunts? Cannon fodder on the periphery of Root, a small-time pirate in an unknown pirate crew, a henchman in Frieza's army, a low-level mage in the Phantom Guild, an unknown member of the Panxing Cult, a descendant of a border military household of the Sun Moon Empire, a small-time mercenary in the Wolf Head Mercenary Group of Qingshan Town, a squad leader in the Wild Wolf Gang… But don't worry, these problems are all insignificant under the immense power of transmigration. He Nian, the Naruto character, transformed his innate Qi into a special immortal body, began cultivating immortality with the help of sealing techniques, and successfully nurtured a chakra immortal beast within his body. He Nian, the One Piece character, thought, "Who says only Devil Fruit users can use superpowers? Haki is also Qi! Eat my Lightning Release Kamehameha!" He Nian, the Fairy Tail character, wondered, "Who taught me Dragon Slayer Magic?" It's a dragon called WarGreymon! Watch me unleash my Dragon Slayer Secret Technique and annihilate the black dragon with a tornado! Douluo He Nian, with a God-Slaying Zanpakuto in his left hand and a Dragon-Slaying Dragon-Slaying Sword in his right, who can withstand a single strike from me?! Doupo He Nian, even dogs don't practice the evolutionary technique Burning Technique. I possess various evolutionary powers myself. As long as I eat enough, my battle qi can continuously mega-evolve and ultimately evolve! When all the He Nian beings from the heavens gather, even if the rules of the worlds stand in their way, they will surely be able to make the worlds even more vibrant and colorful by beating them up.