On the planet Tora, somewhere in the Crab Nebula, the companion-less Seventh Doctor was once walking near a mountain named Kabuki. Suddenly, he was beset by vandals. Ly-Chee, a hermit who lived on the mountain, came down swiftly on the attackers. Though the Doctor thanked Ly-Chee for his able assistance, the Doctor's knowledge of Venusian aikido proved sufficient for his own defence.