Hanzo Kisaragi

He is the biological father of Yamato Kisaragi, adoptive father of Mikako Kurokawa, and was the former head of the Kisaragi Foundation prior to his death. Hanzo is first introduced in Chapter 3 when his graduation album is discovered by Tsurugi Kinjo and Yuki Maeda in the science lab. A photo of him posing with Yamato and Mikako as children is found by Yuki later in Chapter 6. During his youth, he attended Hope's Peak Academy as a part of the 58th class as the Ultimate Inventor. Hanzo developed a terminal illness in his youth that went unnoticed during his time at Hope's Peak Academy and grew worse in adulthood.