Class 1-A and a few pro heroes were teamed up with the ADA from Yokohama,making them villainous and suspicious in the heroes eyes.They were on Standard island in Britain,but they were stopped when the guards caught news of a trespasser.Turns out it was Dazai osamu,the careless,painless suicide lover of the ADA who was secretly smart,in a trash can.Atsushi looked bewildered,Kunikida looked annoyed but they all soon settled down before being introduced to a man called Captain Waston.