In walks a terrorist

A 24 yr old book author from America named Henrik visits Japan on a business trip. During his work he is asked by a business man named Akihito to take care of his son Shinobu while he is visiting America for his schooling. Henrik agrees to do so. Shinobu falls in love with Henrik at first sight. He was a fantastic cook and a terrific cleaner. Shinobu tries with all his might to make Henrik love him but will he?