Kaiju Kamui manga volume 1 features story and art by Shintaro Arima.

Japan has been devastated by attacks from giant monsters! Tanks, bombs, missiles, airpower—all are useless against the overwhelming threat. In a desperate gambit, ace pilot Yamato Shidou is placed onboard a giant biological weapon, codename: Kamui. The only thing that can beat a kaiju…is another kaiju!