Old bl manga

Uke and seme used to be best friends.Seme parents died due to fire accident and the uke parents take him. as they grew older they are like strangers although uke tries to befriend him the same keep ignoring him.

Later when they in high school the seme finds out that the uke parents kills his parents and has taken over the seme parents company. When the uke find out he help seme to find the evidence that can increminate his parents.

That's all that I can remember. Thank you