You can try to use asia_argento as the trigger word. In fact, Lora, which is trained with full standards, can reproduce most of the character's features by using character features such as hair color and eye color without using character trigger words, and Ophis can only use Ophis as the trigger word.

In fact, training multiple characters is the same as training one character. You just need to prepare several training sets of characters and then train them together. If you want to reproduce the character with just one character, you can delete all the feature labels of the character and leave only one character label. In this way, you can reproduce the character with a high probability with just one character.