Dragons Rioting Vol. 4
Intended for mature audiences
A swimsuit thief strikes! But when Rintaro searches for the culprit, he accidentally accuses a legendary dragon: the Dragon of Severe Waves Ren - who is also the Dragon of Storming Jade Rino's older sister! While conducting her own investigation, Keiko is attacked by a mysterious black beast! Now there's a black shadow enveloping the school! Oh boy, the culprit this time around is seriously tough. This looks like a job for Furuhata...er, that is, Rintaro Tachibana!