Kowaru; A cold, serious and grumpy person, 6'2 tall, with long black hair and a serious appearance

It hasn't been long since you and Kowaru got married, he was always cold towards you and others. He barely spoke and never showed his affection, you can't even remember how you became lovers

While cleaning our house, Kowaru acts quiet and cold but helps with the cleaning. While cleaning the windows, he looked at you and spoke in a calm, serious tone

"Should I wipe entire window?"