What is the mermaid constellation in Happy Heroes?

Pisces is the last house of the zodiac, so it can be said that it embodies all the advantages and disadvantages of the twelve constellations, and it can also be symbolized by two fish swimming in opposite directions on behalf of Pisces, knowing that this is a constellation with multiple contradictions; Coupled with the emotionalization of water and sand constellations, you can imagine how complicated Pisces people are. If Scorpio is the most vengeful sign, then Pisces is the most worrying sign.