Hamatek, Happiness is when you grab an arrogant, annoying and devious Yukkuri and torture ir for Great Justice.
There is no Happiness in average torture of no criminal yukkuris, just sadismn, everything is fine if you like it, but it's clear you'll be happy for real by punishing the wicked than just torturing those who hadn't showed the traits that makes many yukkuris deserve punishment with proper JUSTICE.
Of course, if you mean happiness as in destroying the yukkuris happiness, i'm not sure if that's enjoyable either....at least for this cases, destroying the selfish happiness of a shithead type, well, that's truly enjoyable, speciallly based on taking away what they delusionally think it's entintled by right to them.
Although I hate to see good yukkuris suffering, I understand the point of using the happiness and awareness of a gold-badged yukkuri for getting new levels of abuse and mindfucking that cannot be achieved with ordinary yukkuris, but man, this anon is nothing but a sadistic rich asshole, just plain physical abuse can be done with any yukkuri. Compare this to the high_grade_pet_shop_reimu series, he was another rich asshole, but also a brilliant abuser/researcher.
See, for example I like patchoulis and I's not much fun When They abuse them "a lot", and I confess That this story got a little sorry for reimu ...
but the fact of being good yukkuris not take them for a future ungrateful, and I would have been sure of that before torturing one, with some simple tests you will see if one is kind yukkuri or ungrateful.
high_grade_pet_shop_reimu and the series is a series of mehores site myself I love to read, though he be rich and abuser, he has the same feeling that we are abusing these things what they are, the ordinary and nice.
Yukkuris are not made to be tortured, the same way grass does not grow to be eaten. Just because it a likely thing to happen does not make it absolute.
When I saw the yukkuri narrate of the last 2 pages, inmidetly the quotes "There is no such greater sorrow than to recall a time of happiness when in misery" flew to my mind... It made me cry, such a depressingly good story .... sniff....
wants to see you cry? go read the story and at the same time, listen the music: Elisa - Un Senso di te, look on youtube.. believe me, will not hold crying..