xesseian Pichu
They can't use electricity well; when it's surprised or excited, it discharges electricity unintentionally. Despite its small size, it can zap even adult humans. However, if it does so, it also surprises itself.
Xesseian Pichu behave differently from other Pichu and are known to imitate people and can even be encountered wearing clothes. There is a toy manufacturer who makes small bicycles for pichu to ride that help it control it's electricity by absorbing it. If you intend to keep one, it is worth looking into getting one of those bicycles.
xesseian Pikachu
It stores electricity in the pouches on its cheeks and is often seen recharging other Xessian Pikachu if they are weakened. This intelligent Pokémon roasts hard berries with electricity to make them tender enough to eat.
Unlike other Pikachu, Xessian Pikachu live in the city with others of it's kind as well as humans. They always wear some type of apparel and are considered fashion icons. Whatever the Pikachu in Xesse's capital decide to wear is considered the norm by anyone with a modicum of fashion sense. Their style, just like fashion, is capricious and can change at any moment.
xesseian Raichu
Its long tail serves as a ground to protect itself from its own high voltage power. When electricity builds up too much inside its body, they become sad and tend to isolate themselves. To avoid this, it occasionally discharges excess energy and calms itself down by planting its tail in the ground and discharging. Scorched patches of ground can be found all over Xessian cities. They look out after each other and if other Raichu notice one of their kind isolating itself they will help it discharge. Xessia Raichu don't care about clothing anymore like Xessian Pichu and Pikachu do, but they are considered connoisseurs when it comes to food. Whatever food they take an interest in becomes immensely popular immediately.