Chilshi isn't just old man yaoi; it's tragic old man yaoi, which makes the ship 100% better in my eyes. As a dwarf, Senshi has a long lifespan, while Chilchuck, being a half-foot, only lives for 50 years, and he has already used up 29 of those years so far. If they ever got together, Senshi would have that nagging reality in the back of his mind that Chilchuck would die before him and that they would not have much time together. Their love is doomed from the start.
Funny things I found out playing with language setting in Netflix while looking episode 15:
Chilchuck's scream sounds HAUNTED in brazilian portuguese. Give it a try if you can.
(You can hear it here)
In spanish dub, Senshi says: "tocó mis senos de hombre", which means "he touched my man boobs" in Spanish. And I think that's the best dub line one so far.