Andromeda Shun (アンドロメダ星座の瞬 Andoromeda Seiza no Shun?, shun meaning "twinkle") is arguably one of the strongest characters in the series, although his gentle disposition and kind nature tend to hold him back from using his full power, until he is forced to do so. Shun is also the younger brother of Phoenix Ikki, a fellow bronze saint. Many newcomers to the series have mistaken Shun for a female character, since the Andromeda is a feminine constellation, and the anime adaptation modified Kurumada's original design of the Cloth itself to some extent, to have it appear to have breasts (many were mistaken for years until they were old enough to distinguish the subtle differences). To fight, Shun normally relies on the Andromeda chain, as he does not want to use his full power because he does not want to kill the opponents. During the Sanctuary Arc, Shun awoke the 7th sense in his fights against the Gold Saints. Although a reluctant fighter, Shun is one of Kurumada's characters with the larger technique arsenals at his disposal.
His known techniques are:
Nebula Chain: The Andromeda Saint's signature technique which allows him to manipulate the chains of his Cloth however he pleases. At the most basic, the "Nebula Chain" is a straight-forward attack where the chains rapidly slice and wrap themselves around the enemy. This attack can be improved by using the Thunder Wave of the chain.
Rolling Defense: A simple defensive technique that utilizes Shun's chains in one of two ways: he will either twirl the chains around himself to create a barrier, or set them on the ground to mimic a circular web; this was later named the Circle Defense. In web mode, the chains construct a distance between himself and the opponent, and will discharge energy volts or simply slash the enemy if they attempt to enter the field.
Great Capture: A technique that twists the chains to paralyze, capture, or immobilize foes. Shun also uses other ways of capturing opponents with Boomerang Shoot, Spiral Duct, etc.
Nebula Stream: A defensive attack that links directly to Shun's Cosmo. It entangles the foe with streams of the Andromeda cosmos in an attempt to paralyze them. As Shun becomes more determined to use his true power, the stream will eventually transfigure into the "Nebula Storm" technique.
Nebula Storm: By the time Shun has chosen to execute it, his Cloth and chains are abandoned (either voluntarily or destroyed by his opponent) to allow him full access to his cosmos. The attack is dispelled as a single burst from the summit of Shun's Cosmo. Because of its extreme destructive nature, Shun will only use it as a last resort.