[Crossover] The Whole Martial World Knows I'm a Daddy!

Why are famous weapons of the martial world going missing one after another? Who has the Heavenly Sword and Dragon Saber fallen into the hands of? Has the beggar gang leader's token, the Dog-Beating Stick, mysteriously disappeared? Martial-world Mysteries takes you on a scientific journey into all of it! Uncover the bizarre! A stay-at-home dad priest who has spent years raising sheep at Pure Yang gets transmigrated into a world where all the martial arts heroes have crossed paths, bringing along a ridiculous child-rearing System. Now he has to raise... weapon kids?! Why does everyone else get a face-slapping, level-up, reach-the-pinnacle-of-life System, while his is a weapon-raising System?! Can I apply for a refund?! Theme: