waitt whyy they cant? I might've forgotten since ive read it long ago tsndglss
If I remember correctly, since Karasuma is like a prostitute before he met Keisuke, he drank too much contraceptives so he wouldn’t get pregnant and I think it caused a permanent damage on his womb (´;ω;`)
I’m so happy Utou and Sumi had babies but damn knowing that Karasuma and Keisuke cannot have babies hurts like a bitch