He told Shiki to not seek out a hero to heal the wound, and to stitch it with either help from his parents or by himself. Fearing what Baku would do if he didn't, Shiki did so and broke at least his nose before Baku told him to stop.Д«aku taunted the teen about his actions, saying he was really into that beating he gave the poor man and how he didn't expect Shiki to give him more than one hit, asking if he thought Baku would've detonated himself if he didn't.ДЄt the end of the three hours, Baku instructed Shiki to give him his Switch-Blade and used it to carve a line from just beneath Shiki's left eye to his ear. When they encountered a homeless man, Baku ordered the hero-in-training to beat him until he said stop. He also explained what his Quirk was and how it worked, mainly that it is activated by taking a deep breath and willing the explosion to happen.ДЇor three hours, Baku forced Shiki to be his play-date, walking around the city and forcing Shiki to do whatever he wanted. Just after 3, Baku sat down next to Shiki and laid out the rules of their little game, saying that if Shiki followed them he would make it out just fine and no civilians would have to die. Instructing Baku that if he informed the other heroes he'd know and detonate, Baku told him to arrive at a bench in a city park by 3 P.M. Sending several letters addressed to Shiki by name, Baku informed the 15-year-old that if he did not do exactly as he said, Baku would destroy a city block and continue until his demands were met. When he was 27, Baku learned of a new prospective target at U.A High, Shiki Nomura, through his web of spies.Д«iding his time, Baku learned everything he could about Shiki's power and limits before making his move later that year. The Pro-Heroes have encountered him in the past but been unable to secure him and forced to let him go lest he make good on his threats. The fact that the experience haunted him for two years pleased Baku every day.Д«aku's past is unknown, but it is known that when he was roughly 22 he began his reign of terror. He took great pleasure in carving a permanent scar into Shiki Nomura's face when toying with the teen. Sometimes, he will tell them to do something demeaning or immoral, then act surprised and ask if they thought he would detonate if they hadn't have done that task, or act like they thought the hero would be less into it.Д«aku has no concept of mercy or guilt, and if the heroes don't play his game he will slaughter any amount of people and make them know it's their fault he did it. He will take them around the city, acting like they're just having a good time and force the hero to perform any task that comes to mind. He then sends them photos in the mail, then a phone, calling them and saying that if they don't play his game he will destroy a populated area.Дemonstrated best when he toyed with Shiki, Baku will make a grand display of taking a deep breath at random moments to keep the heroes on edge, wondering if they did something to anger him.

When preparing to toy with a hero, Baku will stalk them for a very long time to learn their Quirk and its drawbacks and strengths. He enjoys the fear that his power can lord over the civilian population, but even above that, he enjoys forcing heroes to concede to his demands out of fear that he will detonate himself. Baku's most notable feature is that he has bushy, grayish hair.Д«aku is, above all else, a sadist and a terrorist.

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