Nineteen Year-Old Widow: Lover in the Heart of a Beautiful Sketch Artist (Part 2) - S2.E46

It turns out that a rival Yakuza group is fighting Ayako's group for control over a large park. When the rival group starts a fire in the park, Ryo assists the friendly Yakuza in preventing a disaster and later on dispatches the rival group. But Ryo also must find the source of Ayako's pain and enable her to live a normal life again.