Now that I have seen the 2nd ep of bts kdrama, I will write the review.
So this episode starts with a very mysterious view very adoptive mother of Hoseok is finding him. Suddenly you end up in the hospital where Jimin is covered with Hoseoks' blood and telling his mom that everything is fine. Still, then afterward Hoseok's mom told him that Jimin also has a secret medical condition as she heard it while eavesdropping on his and his mother's conversation. Now the scene changes all of them is back at school and they are sitting together where Hoseok tell Jimin the reason of his fainting and later they start planning Suga's birthday meanwhile in the drama Suga is getting scolded from the principle for bullying juniors that he never did but Suga being Suga listened and gave no fucks here while he is getting scolded you will see that he's looking at photos of every year scholars and one of them is missing which year was the year of their parents then after he left he was going back to his place where he finds Vs dad drunk on the road and he help him to the home and when he was leaving v's dad said him something related to Suga's mother murder and then when he was leaving he found the missing photo from principles office in v's home he take it and leave then coming back you will find rest of the members planning Suga's birthday and all the positive and fun stuff but in last things again end up at a mysterious point where Suga somehow gets inside his school which is closed at the moment and goes into a secret room and plays piano and then while leaving principle finds him and ask him how he got inside and instead of answering that he cross questions him with "you know my mother right?"
So this was all about 2nd ep not a detailed review because I want you to see it yourself but tbh I really love this drama how they have mixed all the eras wings and hyyh and making a great funny and mysterious story.