Complex sentence: A valuable ally to the Bronze Saints, he first assists them in repairing their Cloths, then saves their lives during the battle against the Black Saints and assists Seiya in the duel against Lizard Misty.
Split into simpler sentences: A valuable ally to the Bronze Saints, he first assists them in repairing their Cloths, a service he provides in more than one occasion. Mu saved the Bronze Saints' lives during the battles against the Black Saints and assisted Seiya in the duel against Lizard Misty.