Developed on the Jupitris, the PMX-004 Titania was the fifth of Paptimus Scirocco's hand-made mobile suits. Though its design seems to follow in the footsteps of the PMX-001 Palace Athene, the Titania could be said to be the successor to Scirocco's personal machine, the PMX-003 The-O. It maintains much of The-O's design ethics, including the same beam rifle and the concept of sub-arms, though the Titania's were mounted in its shoulders instead of its skirt armor. One of its most distinct features was the inclusion of a Psycommu system and a set of funnels, technically making the Titania the second mobile suit to ever use such weapons, the first being the AMX-004 Qubeley.
Scirocco intended the Titania to be the personal mobile suit of the woman he intended to install as Earth's queen when he took over. However, he never found a suitable candidate before his death at the hands of Kamille Bidan's MSZ-006 Zeta Gundam. Because of his death, the development of the Titania was never finished.