Anime Like Bakumatsu Rock: Mystery! Onsen Kaijiken ze yo!!
SYNOPSIS
A relaxing day trip to Teradaya takes a dark turn when the band discovers a dead body on the premises. The marks left behind, a mysterious "69" etched into the victim's leg, become their only clue to unraveling what happened. With no authorities immediately available, the group must piece together the truth themselves, questioning staff and guests while navigating the peculiar circumstances surrounding the death. The OVA blends mystery with the rock music energy that defines this franchise, creating an odd but engaging tone. Characters swap between their usual charisma and genuine concern as they investigate, treating the puzzle seriously while the absurdity of their situation never quite disappears. The confined setting of the hot spring resort keeps tension high as suspects emerge from unexpected places. This one-shot mystery works best for fans already invested in these characters and their dynamics. If you enjoy watching a tight-knit group work together under pressure, with rock aesthetics framing the investigation, this delivers a compact story that uses its limited runtime efficiently.
