Ruby

As Meimi’s loyal pet hedgehog, this tiny companion plays a pivotal role in the Saint Tail adventures. After being rescued from a man who forced her to swallow a precious gem, she becomes a key accomplice in Meimi's nighttime heists. Although she is aware of Meimi's secret identity and has participated in past missions, she must remain carefully hidden from Asuka Jr. to prevent him from uncovering the truth.