Enhance your primary character by sacrificing lower priority characters to improve their overall stats. Focus on enhancing characters that are of the rarest tier as well as having the strongest statistics upon improvement. After reaching the maximum level for enhancing, you can now use evolution to further upgrade your character. Through evolution, the level of your character will be reset to level 1 and their overall stats will barely increase. Their biggest improvement will appear during the first enhancement after they evolve. After that, the character will level up and gain stats rapidly.
