The pun worked in English, but what was it in Japanese? The series Kamigami no Asobi is a reverse harem involving a mortal girl, Yui Kusanagi, who is tasked with teaching six of the ancient gods about the meaning of love.  Episode 4 focuses on Hades.  He is shown to have a dry wit and a tendency towards intellectual puns.  However he avoids contact with people and gods because he is cursed and believes he will bring misfortune to those near him.

At the end, Yui and the other gods show him that they really like him and will chance misfortune to be around him.  In explaining his happiness to her, he says (in English subtext, time mark 21:04 to get full context):


I cannot wallow in misfortune.
Kusanagi,
"Yui" were right about everything.


The pun works great in English. It got me curious if there was a pun in Japanese as well.  Is "Yui" similar to a Japanese word for "you"? If not, how did it work?
What Hades pronounced is「お前のゆいとおりだ」, which is a pun on 「お前のゆうとおりだ」 ("exactly as you say", "you're correct").

To break down:


お前 omae: "you"
の no: (subject marker)
ゆう yū: a colloquial pronunciation of the verb 言う (いう), "to say"
とおり tōri: "as", "like", "the way"
だ da: (copula, "is")


ゆとり is not relevant.

So in the Japanese version, it's the pun on Yui (the name of the heroine) and yū ("to say"). The translator did a good job, taking advantage of the fact that English "you" and Japanese "言う/yū" have similar sounds.

Note that this sounds like a typical cheesy "oyaji gag" to the ear of Japanese, usually completely unsuitable for a romantic situation like this. I don't know about the male character, but is this his way of speaking? :)