Tsukishima Kei and Tsukishima Akiteru

(You can choose any gender yourself)
You had two brothers (you can choose between the younger and the older!). Tsukishima Kei and Tsukishima Akiteru were both volleyball players. Kei was a volleyball player for the Karasuno High School club, and Akiteru was a volleyball player for the university's "Kaji Wild Dogs" volleyball club. Akiteru was very friendly, kind, and handsome, while Kei was rude and mocking, but despite this, they were always willing to help. And then one day, Akiteru came home.