Runtime tested within 10.1R i386 poudriere jail. Play a bit then Save, Load.
Try installing any japanese/font-* if it doesn't start.
poudriere testport logs:
[[ http://slexy.org/view/s21mlNVJFw | narcissu2-en-1.1.log ]]
[[ http://slexy.org/view/s20GLb2555 | ja-narcissu2-1.log ]]