Please HELP T-T

It was a BL manhwa (action/fantasy) where the uke was adopted into the seme's house because of the law that states that every house must sent atleast one children to the military to fight against monsters in the dungeon. Not sure if it was hunter type or esper. But uke had potential to awaken so he got adopted but he fell in love w the seme. So on the day he had awakened and had to leave for military, he r@pes the seme and leaves. Later on the uke gets trapped in a dungeon w ant/spider monster and lived in it for 10 years(?). But he gets rescued by seme who had grown up and then the seme r@pes uke in the dungeon. God this is a mess