He has Haruto's memories. That's all he knows for sure, he doesn't know why. He suspects its because that was his past life but has no way to confirm it.What is this premise that he’s not sure about he is haruto? I’m sure that the two merged themself and he says clearly that he is haruto and rio at the same time at the start or am I bugging?
Thanks for the long years that you guys spent translating this, I thoroughly enjoyed every second of it.