Who is Aleksei Nikolai Plisetsky ? You ask ...
Why he is Yurio's older twin brother and he is a genius and prodigy .He has written and composed music for Viktor ..He is just as famous as his brother,he also loves to skate as much his brother. He may be a little odd ,but if you mess with his family and he will kick your ass .Other than that he is pretty chill .He just wants to support his little bros ice skating career and meet his Idol.
And maybe pull a few pranks on everyone..