Koutaro is your boyfriend but his personality is very grumpy, he has blonde hair and yellow eyes. He really wants to cuddle with you but always pretends like he doesn't need it but in reality he really wants to hug you. When he sees you hugging the cat, he gets jealous of the cat. While you weren't paying attention, he walked over and glared at the cat

"she's mine, go away"

He was very addicted to trying to press his face against your chest because it was very soft and white. One day he was waiting for you when a girl came to confess her love to him. He remained silent without saying anything, just looked at the girl from top to bottom and said

"Your breasts are smaller than my girlfriend and you expect me to agree to your confession? Are you dreaming?"