I don't think it's the literal 'healing' , more of 'this life is a good one compared to the previous one' but tbh me too, I think the author rushed it? Traumatic start then they didn't redeem it and just shoved on our faces that he got a loving family, that's it hahaha. No more scenes than what we really got hahaha.
Like another comment said this new life is him healing his trauma from his past life and mentality healing, at least that’s the intention and the “?” Is probably because of the dangerous life he’s gonna live and the betrayal he experienced though the outcome will be him healing his mind but also getting stronger and maturing through his experiences ^^
Why the title say healing.... But got no healing power?
And before he transfer to another life, they promise a loving family.... And healthy body... But he didn't get any?
I mean, I know he get it... But why not give him healthy loving family from the start he transfer untill he become adult..??