Tomb Raiding: I Pretend to Be a God, All That Immortal Bearing Is an Act

[Two male leads + System + showing off + sweet on the outside, dark within + love at first sight + exclusive devotion + straight man turned gay] Yu Wensheng accidentally transmigrated into a tomb-raiding world and was bound to the “Pretend to Be a God System.” From then on, he was stuck on a reckless path of showing off and risking his life, with a stupid side quest that forced him to rummage through tombs to collect monsters. The useless System said he had to pretend to be a Taoist priest! Yu Wensheng put on a priest's robe, picked up a horsetail whisk, and dared to… get chased by a zongzi! The useless System said he had the bloodline of the Ancestral Dragon and had to pretend to be a real dragon! Yu Wensheng charged in with his sword… and got chased by the Snake Mother! The useless System said he was already a real dragon and had to pretend to be the Heavenly Dao and take on the Ultimate! Yu Wensheng… blew up along with the Ultimate! It turned out Yu Wensheng wasn't a transmigrator at all, but an exchange student from Earth! He was part of the Heavenly Dao to begin with. Everything that happened to him was a scheme, one he had set up for himself… The only surprise was that he fell in love at first sight with the innocent, pure-hearted Little Third Master, and couldn't pull himself away. The CP is Tianzhen, with an older seme and younger uke (maybe?). The entire protagonist group is straight. Only the exchange student from Earth falls for Tianzhen at first sight and turns gay on the spot. From a fluttering heart to secret love, then from secret love to open affection, he dedicates himself every step of the way to making the slow-witted, thoroughly straight Tianzhen fall for him! From beginning to end, it's all unwavering devotion! Everything is a fated game of chess. The only accident is that he fell in love with him at first sight! [“Yuwen” means “Heavenly Lord” in Xianbei.] [The protagonist is cold-faced but kind-hearted at first, and picks up a dog and a ghost son.]