The standard for how easy something is, is primarily dependent on accessory, followed by appearance, and then ability.
(individual variations might apply)*A typical example of failure to develop mutual relationshipFirst, you should explain to it that swearing is bad.In order to retort it, let the yukkuri see itself in the mirror.Most yukkuri judges the worth of others by how easy they are, and it's reflected in their attitude.Not to mention, it's very difficult for a newborn scum to develop a mutual relationship with humans, and thus the emotional side need some work.Yuaa~ah!?
This scum ish Maricha!?