I'm glad Asakura isn't that smart. If he's so determined that Haru should die, why didn't he kill him himself? It's not like babies can defend themselves. Offer to babysit him while Wakaba does something, then make Haru disappear. Instead, he relies on 2 high school girls who aren't heartless pieces of crap to do the dirty work for him.
"Why don't I get the girl who rescued an abandoned baby to give the abandoned baby back to the parents who abandoned it, but I'll be the intermediary who does the hand-off because... ? Then once I get the baby back, I'll get my underage lover to kill it, even though she's his mother and couldn't bear to do it the first time."
Seriously, this guy needs to get a cactus stuck up his ass, be put on a camel, and ride straight to hell.