The Limit, 5 (Limit) (Book:5)

As a search-and-rescue party is now deep into the hunt for survivors, another young life has fallen seemingly from the hands of another. Tensions are high, but Mizuki feels she may have found brief solace in old acquaintance Haruaki. But her trust may soon be betrayed once again, when he reveals who may be behind murders since the bus crash, potentially driving the pair further into darkness.