Does anyone know if there is any scene with Rei Ayanami?
probably not. maybe in the next update.
Next update is still Tatsumaki. Rei will need to win a poll to get a route
There is a little explicit scene with her (on Asuka's route) but if you mean an H-scene with her there isn't one at the moment.
Sadly no. Rei will need to win a poll to get a route
