TRIZTAN UNIVERSITY is a school for the son and daughter of a mafia boss/leader, aspiring assassins, yakuza and mafia members wannabe, gangsters who wants thrill. Inside the school, there is a pyramid ranking as well. The top has the heirs and heiresses, the important ones who'll be ruling a certain organization after graduating. The second has the aspiring assassins. The third has the aspiring members to a certain organization. And the last has the gangsters. WELCOME TO TRIZTAN UNIVERSITY! Be a monster, let them fear you. Are you ready to be sent to hell for doing the bloody tasks? ...