After reading this, I read the side story. The ex was definitely a jerk. I mean I can understand that he fell out of love but it would've been decent of him to end his relationship properly before committing to another relationship but he didn't. Both uke are beautiful.. but I feel Reiji is the one to be protected at all cost. Such a pure peachy roll. I love Reiji and Eien tbh. Good riddance to the ex.
Eien Shika Hoshikunai