From the exposition in Hiroshima: looks like every upcoming ruin will deal with the past of its corresponding main character. 15: Souma's past in Fire Ruins; 16: Ryuho's past in Water Ruins; 17: Haruto's past in Earth Ruins. Yuna seems to be the only one that got the extra-episode treatment.
* R4 @' \* L7 I- ?8 x
自:nonowa - ?5 K6 y) E* y' L" f' c+ S l1 l# p7 M/ v6 k
借LZ宝地也更新一条 ' v5 b8 D0 f0 M" X; G: O9 s: C15-17的简要