Syncros (Syncro in French and Sincro in Spanish) is one of the characters that appears in the Battle of Bracelets series. She makes her first appearance in Battle of Bracelets 5 as one of the servers of the God of the Sun, the Scorpio Ikarus. Syncros is, besides, one of the twelve main Ikarus and the keeper of the Eighth Key of Scorpio. She is also the leader of the punishment squad of the Ikarus army. Her main abilities are the Poison Blood, an ability that allows her intoxicate the rival thanks to her blood, so any attack can poison the enemy; and Scorpion Call, an ability with which she can attack with the help of an army of scorpions. Her main weapon is the Antares Needle, an extreme weapon with which she can intoxicate her rival with an only stitch and with which she can ignite the blood of the enemy.