So this is not a typical BL series which we watch. No lovey dovey stuffs. But what we see in this series is close to the reality.
As the title suggests, the series definitely potrays the effects of one's action. This series deal with major issues which exists in real life.
1. Kheng potrays the reality of life that nothing is perfect. Even though he is smart handsome and perfect on the inside he deals with issues like his family who wants him to study something he doesn't like and over expectations. Also a family who doesn't love their child but only care about their reputation
2. Shin a close, shy introverted guy who is uncomfortable to make new friends something all introverts face. We all want friends but just the shyness stops us. I'm introvert so I relate.
3. Bright even though not much coverage to him but I like him a lot. Also we see how he pays for people just to please them. A issue maybe people face I'm not rich so I don't know. But its shows how people use you only when they hav a profit. N people like these are better cut out of life.
Other than this you learn all the harmful effects one's action has on another. Like social media. How people can just type something on comments and hurt someone. It shows the dark side of the social media and people who just make assumptions start rumors without caring for others feelings. Also rape. They show the after effects one has after this both physically and mentally. At one point you decide that committing suicide is the best way to end the pain. Also how important it is to have support from your friends and family . How it could help you in hard times

Finally would I call it a BL drama ? nope. But its a must watch. Coz not everything is rainbows and unicorns and this shows the reality of life. Also next time you hate comment remember what effects it can cause on someone's life. Thats all don't watch it if you can't handle the reality or if u r expecting BL cos its not