Kiriwo Terrible summary:

From MangaHelpers: There are huge monsters wreaking havoc in Mikagura Kiriwo's city. Building on his father's work, Kiriwo has created a serum that turns him into a giant monster for a short time. He uses this serum to help protect the town from a monster one day--only to find that everyone thinks he's an enemy, too! Everyone at school and in the media hates the "black monster" that he became, due to the massive destruction he did to the town around him. A girl from his class even has to quit school, due to problems caused by the "black monster." Will Kiriwo be able to show that his monster form is really intended to be a savior? [tethysdust]
Chapter name View Time uploaded
Vol.4 chapter 36 : Power 772 Mar-03-16
Vol.4 chapter 33 : Raid 738 Feb-28-16
Chapter 30 753 Feb-25-16
Chapter 29 661 Feb-24-16
Chapter 28 747 Feb-23-16
Chapter 26 : Pursuit 774 Feb-15-16
Chapter 24 : Victory 749 Feb-13-16
Vol.3 chapter 22 : Team 688 Jan-29-16
Vol.2 chapter 17 807 Jan-20-16
Vol.2 chapter 12 790 Jan-20-16
Vol.2 chapter 11 : Drive 834 Jan-20-16
Vol.1 chapter 6 : Sortie 995 Jan-20-16
Vol.1 chapter 4 : Hero 1,032 Jan-20-16