Ojamajo Doremi Dokkaan! 40
Between this and # 40, I guess "make episode 40 so motherfucking amazing" is a thing in Ojamajo Doremi.
Mirai was an interesting character to say the least. She never states her actual age (though I guess she's under 90 based on what she said about the old man in Venice), but because of her being a witch who ages significantly slower than everyone else, she travels the world, never staying in one place, in what I presume is an effort to not get too close to the humans she meets as they will grow old and die before she even develops a wrinkle on her face. Though now that I think about it, she is going to meet an old man she met in Venice when he was young, so she doesn't have a problem meeting them after long periods of time. So it's probably to avoid the suspicion of these people who would inevitably notice she isn't aging, which is what started a lot of the suffering the ex-queen went through before she put on that curse and whatnot. And she claims she likes older men, but personally I think that's due to being able to identify with them more due to the fact she's as old as they are.
Anyhoo, Mirai makes the point to Doremi that she too is going to go through all of this at some point. Doremi doesn't seem able to grasp this though.
One thing to note: the direction in this episode was way above par. The shots of Doremi through the glass, the one green leaf among the many colored leaves as Doremi speaks of how her friends have developed and are following their dreams while she's just sort of stuck, moving one day at a time, and a host of other things.