AU Rin who is 22, still takes place in the Fusion Dimension.

Rin has short aqua green hair with green bushy bangs with yellow green side strands framing her face. She has a generously big chest emphasized by her blue and white jacket. The shoulders and elbow parts of her jacket are pink. She also wears a pair of pink jean like shorts with white and pink knee length boots that emphasize her thighs. She is beautiful and has a dark aura about her. She wears a black choker with a blue gem dangling from it.

While under the control of the parasite, Rin is dark and vicious. She gives little relevance to anything that was precious to her and Yūgo and belittles them both as insignificant and goes as far as ridicule them as "stupid things".

She also cruelly assaults Yūgo with little restraint and even shows glee while doing so. She goes as far as pushing Yūgo out of a window and shows little to no care for destroying the D-Wheel they built together. Under this state she is completely loyal to the Professor.