So this reimu hate his child type marisa cause his behavior is like his father marisa and why reimu hate it because marisa eat his baby that in stalk
Yeah pretty much. And "her" not "his", Maricha literally calling Reimu as "mother".
Kinda ironic, had Marisa eaten Maricha, there would be a very small chance that Reimu would forgive her instead of beating and telling others about her cannibalism.
But then again, Reimu is not a good parent either, if she didn't want to nourish Maricha, just killed it, it's not like she was having a mammalian birth, but a stalk birth, and pruning the premature yukkuri that's still on the stalk is not considered killing of its own kind. And if she was afraid of being punished, just blame it all on Marisa, saying something like "she's eaten all of them, she killed them, that shitty trash,..." bla bla bla. Why bother giving birth when you don't want to raise it?
Also, thanks for uploading Yuno, but this is why I didn't plan to upload all of his works although it's very good, it's just incomplete and unsatisfied.