There isn't a specific class that directly translates to "two lives". However, there are some possibilities depending on the context:

* In mythology and fantasy: You might be thinking of a dual-soul concept, where someone has two souls inhabiting one body. This could relate to characters with split personalities or shapeshifters with distinct forms.

* In spiritual context: Some religions or philosophies might refer to a reincarnation cycle, where a soul experiences multiple lifetimes.

* In storytelling: You could also be thinking about characters who live double lives, concealing their true nature or activities.

Could you provide more context about where you encountered this term? Knowing the context would help me give you a more precise answer.