Rukou originated as a logo for a fashion designer. The idea was to make a fusion of a geometric typeface with the flavour of childish features. Rukou was inspired by school hand-writing models, but adds very specific and interesting features to it.
Rather than focusing on readability, the primary goal was to have a unique type texture. This is the reason why lowercase is disconnected. The disconnected letters opened the possibility to create the special shapes for individual letters.
The typefaces consist of two different styles inside one font. You can choose to set your titles in uppercase, or lowercase/titlecase. As each style has a slightly different texture, there is the opportunity to combine them in interesting ways. The uppercase can even be set in small paragraphs.