Pure Super Saiyan

Pure Super Saiyan (清い超サイヤ人, Kiyoi Sūpā Saiya-jin) is a form achieved by Son Benkei and his grandson Hiro. It is what happens when a Saiyan who can go Super Saiyan is faced with intense emotional conflict within themselves and gain a great power increase. After these conditions are met and the Saiyan activates it, they can use it at will.

History
The first person to activate it was Son Benkei once he had his potential unlocked by Odd Kai. The power given by this increase combined with the conflict of either saving the Earth or his daughter allowed him to activate this for a minute, but he was to exaughsted to maintain it. Despite it's short original use, this allowed him to be able to activate it at will once his power was restored.

Benkei later taught it to Hiro as a good way to channel his inherent conflict due to being part of two rival species: Saiyan and Tuffle. Hiro activated it with little effort, and this has since become his most used transformation.

Power
This form, despite being less powerful than a Super Saiyan Three overall, it is a different kind of power that gives this it's more usability in power than even Super Saiyan Four. This form is more controllable, giving the user speed comparable to Super Saiyan Gogeta where it takes a full power Super Saiyan Three to see them, strength enough to catch, lift and throw a one-million ton boulder, durability enough that they can survive a blast strong enough to destroy a planet with little harm, and can be used for several weeks straight before it fizzling out. Despite all these physical enhancements, ki-based attacks are only very slightly enhanced.

Appearance
When someone uses this form, their eyes turn gold, their hair spikes up and turns black (if not already black), and they gain a yellow aura.