These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Iron Woobie: Pai/Parvati. Last of her race (that's not sealed away somewhere anyway) and she thinks she's to blame for it. Doesn't stop her being a Genki Girl to the max.
The Scrappy: Haan. He spends most of the series feeling out of place (being The Rival of Yakumo, an uncommonly uncompetitive and cool headed hero for a shonen manga), and once he finally finds his place he is already dead. From then on, we are treated to his clone, his corpse, and the Cloning Blues that follow.
Too Cool to Live: Connery. Even the remains of his memory is deemed as too much of a power-up for Yakumo.
The Woobie: Thanks to Parental Abandonment. Mama-san reveals that Yakumo's not really the nice guy that he is out of kindness, but more out of fear of being abandoned again...well, that was how it started, anyway.