Tenma was the Pegasus Saint of the eighteenth century. As a boy, he was trained by Crateris Suikyō who trained him as a Saint. However, Suikyō becomes the Garuda Spectre and attacks Libra Dōko and Aries Shion. They are saved by the sudden appearance of Tenma and the Crateris Cloth and its water are used to heal their wounds. Tenma sees a vision in the water; Pegasus Seiya in a wheelchair.
Andromeda Shun appears several days later in the Sanctuary, and he and Tenma head to the fourth house of the Zodiac meet Cancer Deathtoll. Deathtoll wants to kill them and traps them in the coffin of silence, and then throws them into the underworld. Thanks to the intervention of Suikyō, Tenma is able to escape and defeat Deathtoll.
Pegasus Ryūsei Ken: Strikes the opponent with hundreds of punches that look like meteors.
↑Alternative writing is 天馬星座の天馬 (Tenma seiza no Tenba), roughly translated to "Tenba of the Flying Horse Constellation".
↑Intended forced reading, as the kanji 天馬 would usually be read as Tenba.