Sumika looks... actually horrified at the idea of pruned timelines. As for the prospect of a new world, though, she doesn't answer for a long, long moment, looking down at the water. When she does finally look up, she still looks discouraged, water dripping off the stubbornly curled strand of hair at the middle of her hairline.
swapping format to match because I'm a dummy
"But... I can't. Not without Takeru-chan..."