if you think about it this manga is a pretty good example on how humans are social beings
i think that the viris hitting people again was not true just some people who were obbsessed with being cute and i also dont like how it was called a "cure" since all it really did was make people who were having fun stop and if it was a cure it would last far longer than that or not go away
i think the cure was more of a bioweapon if they changed it a bit then they could make humans not want to eat or play or buy things or they could make it so they felt more angry really its terrifying
the entire human race could die bc of it.
though its prob not that deep lol
sorry if this was confusing