Han Ina the time traveler?!

This episode was a highlight for me. The pov shifts to sungmin as he tries to find out the secret to Han ina's eternal youth. My favourite part of the episode was when he thought Han ina and misook were having better food without him when in reality they were just drinking blood to restore their energy. Sungmin tries to find info about bite sisters but comes across vivant hotel in 1934 that Han ina ran, she wore a mini-skirt 15 cm above the knee in 1971, she was in the first national song contest in 1971, and he comes to the hilarious conclusion that she is a time traveler.