Read upto Ch5 and it honestly is a decent read. The plot is not too generic but I was surprised at the age gap between the seme and the uke (9 years). The uke was 28 when the seme was 19. The link between them would be that the uke sponsors him through his adoptive parents, tho they misuse that money and abuses him. He had a mother who used to drop him off at a church (he said sister in one of the flashbacks) who later died in a fire at the church where he was rescued by the uke. The uke has scars in his back which is supposedly from this scenario since the seme asked to see his back when they talked on the hospital. The seme has a female friend, who is always by his side, and who eventually as it turns out notifies the uke on his day-to-day activities in exchange for money (for her mom's surgery). She is a good person tho, as she sincerely expresses her worries and apologised. She even offered for him to stay at their house which the seme refuses.
The seme mentally is not there. There are already signs of the 'psycho seme syndrome'. He is also very smart, as he is able to deduct things at a glance and has fair reasonable skills. He observes the uke and even his surroundings. Even him going to the rooftop was him testing out who was calling the police everytime since he did it so frequently that no-one took him seriously anymore. He set fire to his adoptive parent's house (rightfully so) in order to lure the uke out. Also, on finding out the uke is gay, what would be his reaction? Since the guy that the uke dates was the one he met in the elevator who thought that he was a thief. He was also mad that the uke referred to him as some kid he took pity on, and he also found out his profession (a lawyer).
A Tree Without Roots