Senior brother is the best that is rare to see in this world.
It is said that rabbits do not eat the grass beside the nest, and good horses do not eat the grass that turns back. However, a rabbit that does not eat the grass near the nest is not a good rabbit, and a horse that does not eat the grass that turns back is not a good horse. It's safe to look back! Such a beautiful time-traveling thing, this world's best nest grass can't tolerate her not looking back, so she's not polite!
