Master of Ancient Divine Weapons

Story:

Read manhwa Master of Ancient Divine Weapons Han Zhan Travels Through Different Dimensions: The girls here can transform into divine weapons and form contracts for battle. The boys, on the other hand, awaken as spirit contractors and form bonds with the girls to fend off insect swarms. As a traveler from another world, he was shocked to find that the ones being neglected were actually the renowned ancient divine weapons.