As the Sister of White Lotus and Green Tea, What Should I Be?

We are triplets Sister: I am Green Tea Second sister: I am Bai Lian Me: I don't know Eldest Sister & Second Sister: It doesn't matter if you don't know, we will train you to be the best person, Poseidon! I:? ! Sister & Sister: Be good, sister Me: No! Concept: Worried Best Friend Chapter