GGEN-004 Get the ★催ガラガラ that can infinitely amplify motherhood! Let's try it on my healthy, good-for-nothing little sister…

I got an amazing item! This rattle, which looks like an ordinary baby toy at first glance. However, this item emits alpha waves that only women can hear, allowing them to be brainwashed. Women who listen to this sound all become calm and their maternal instincts rapidly develop. After being brainwashed, they recognize the first person of the opposite sex they see as their own child! Wow, I'll make her my mom for life. That worthless, shitty-tempered sister of mine w