Hinata-senpai and Sousuke-senpai are actually Soujiro-senpai’s cousins. The young masters live together in the same family compound. Even though Soujiro is just about a year older than them, they see him as an older brother figure. As the next head of the family. Soujiro makes sure he looks out for his cousins. ensuring their well-being at home and even in school.