شخصية
Male · العمر غير معروف
He is the butterfly and freestyle swimmer on Samezuka Academy's swim team and a 3rd year high school student at Samezuka Academy. Sosuke is a close elementary school friend of Rin Matsuoka, and the person who understands him the most.
Free! -Eternal Summer-
Free! -Eternal Summer-: Forbidden All-Hard!
High Speed! -Free! Starting Days-
Free! -Timeless Medley- The Promise
Free! -Take Your Marks-
Free! -Dive to the Future-
Free! -Dive to the Future-: Build-Up of Early Spring!
Free! -Road to the World- the Dream
Free! the Final Stroke: The First Volume
Free! the Final Stroke: The Second Volume
