Title:Heart stain Genre:Romance, thriller Rating: 8.5/10 Status: ongoing No of episodes: ?? Synopsis: Heart Stain is a Korean BL series about a high school student with a secret crush on his teacher. The main character knows a relationship is impossible and has no plans to confess. However, keeping his emotions bottled up leaves him tormented. Download link https://nkiri.com/heart-stain-s01-complete-korean-drama/