****SPOILER ALERT****
I loved the show extremely but only till it was just about to end. It was an unnecessary twist of events in the last episode if he were to be shown alive.
It was completely inhuman to let someone like RARA who you love and who loves you back so much, believe that you (Jun) are dead for five long years without considering the amount of pain it caused her. Just because Jun was about to die doesn't make it okay to hurt someone with lies like that and then make it completely okay because he appeared alive laughing at her that she can't believe it was true.
It could have been so much more relevant if it remained a sad ending or just a normal happy ending without the extra event of him playing dead, hurting her for 5 years and then getting her back even after all this.