SPOILER
Yes, after he learned the truth about what Klopp had done to Aeroc, he left the house and set off on a vendetta-like journey against all those who hurt Aeroc, especially his father.
He actually released a book detailing what Klopp had done and what happened to Aeroc. Everyone read it, the whole society looked at Klopp like he was a monster. All the people who abandoned Aeroc felt sick to their stomach at what had become of him. Marquess Wolflake, who was in love with the wife Rapiel in the first timeline (he was in despair after what happened to first Rapiel), actually fell in love with Rapiel (the son of Klopp and Aeroc). Rapiel (the son) used Wolflake to further destroy Klopp's reputation. Wolflake and Rapiel (the son) actually have a sexual relationship and both are using each other (the other to reminisce about his dead love and the other to spite his father). Rapiel (the son) doesn't actually love Wolflake, he is just with them to inflict the maximum amount of hurt to Klopp (seeing your kid hooking up with a man your age is definitely infuriating). Rapiel (the son) also knows Wolflake's part in Aeroc's demise so that's another reason why he will never love Wolflake.
Basically, Rapiel went scorched earth on their asses.
My goodness, this is such an important detail that they deliberately skipped in the manhwa. It makes so much sense now what Wolflake's motivation was when he first told Klopp about Aeroc's involvement in Rapiel's death.
I was really curious if Klopp ever got punished for his crimes. Knowing that the high society shunned him and his own son despise him in the 1st timeline makes me satisfied (well, not really, but you know)
Klopp wasn't publicly shunned because at that point, he had already amassed great power and wealth for himself. But there are people who look at him differently and finally see what a monster he really was, including Wolflake. He was actually quite shocked at the fact that Klopp had named Rapiel after his dead wife. He actually said that naming him like that was a form of punishment (to Aeroc) and that Klopp really was a monster.
This side story was just released this year. 10 years after the original work ended. Idk, I feel like there is a possibility that the author may make a timeline where the OG characters from the 1st timeline do meet. And when that time comes, I will definitely read it

In ch 69, Kloff said that Rapiel will never come back. Is it about Rapiel the son? he was talking about his children growing up & leaving the house when he said this.
I was wondering if Rapiel is not coming back bcs he had learned the truth about Aeroc. That boy was looking at Aeroc's tombstone in ch 68