M!x Aging?

[Nonnytama]

So I got the Anniversary mix which I plan to run as normal, but I still have my Spacey too with Shimigirutchi. I'm wondering if the M!x characters age/die eventually if you don't marry them off like the earlier generation ones? I really like this character >_>

 

[Miss Peanut Butter]

she won't evolve again, and she should be okay as long as you take care of her every day. The only cause of death will be getting too sick.