So the mother has been cured. This is wholesome. But knowing this manga....
In future, I'd like to see an arc where all these people who used to believe that sex is some sort of evil shit like the mother and the protagonist, who later had sex and changed, gather around like Avengers to fight off the shitty law. Holy shit it's going to be like Mission Yozakura except they are not spies but underground sex ring leaders fighting the tyranny of Japan.
Someone post that gif of a man writing on a piece of paper while it is on fire RIGHT NOW