School Bullies, Meet My 109 Big Sisters 3

The narrator was left on driftwood as an infant during chaos near a river, and the winning side who found him wanted to adopt. Now the narrator has 109 sisters, and at home is the spoiled ruler. At school, though, a rich student named Giovanni Rossi and his lackeys corner the narrator in a washroom and beat him up. The narrator grabs Giovanni and rolls down the stairs with him. When the narrator wakes, Marcella Greco, the Dean of Students, berates him angrily: all Giovanni did was beat him up, and yet he plots revenge against him instead. She orders him to summon a guardian or forget about leaving. The narrator has lived a normal life for over a dozen years to avoid trouble, but the guardians, the 109 sisters, are none of them ordinary. The narrator then asks Ms. Greco whether she is certain she wants to meet those guardians.