Shusui Hayasaka

早坂秋水
2
Shusui is Oukas twin brother. He is the younger of the twins. He and his sister are not actually homunuculi. He becomes an Alchemy Warrior as well after LXE falls. Hes smart the best at Kendo at Ginsei High along with being the vice president of the Student Council and as Kazuki and the others state No. 1 even in terms of genital size. In the anime he was recruited by Chitose to be a part of the team dispatched to take out Victor however they were defeated and forced to retreat. Source: Wikipedia
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