[Asahina Makoto] Angels Don't Ring Gongs (Tokyo Shoujo Densetsu) [YxTL]

Boxer Jojiro is the undefeated pride of the ring, and his doting little sister Yukie cheers loudest of all — until his brutal weight cut leaves him a delirious, water-crazed wreck and she decides her brother needs a much more intimate kind of recovery. Between fondling her springy little breasts and coaxing him through the worst of his dehydration with increasingly shameless favors before the big match, Yukie keeps her Onii-chan's spirits high in the most distracting way possible. When fight night ends in a shocking knockout instead of another victory, she can only wonder if her loving 'help' cost him the win.