There is a better version of this manga about a guy who actually got to date his hot boss, but due to plot reasons he has to kiss this high school girl everyday or she'll shrink and die. The dynamic of him trying to stay loyal to his gf and the pressure of physical contact is actally well...
why the fuck did he skip a much more intricate and interesting battle concept than le epic robots? This is top tier laziness IMO. Much harder to flesh out the details of his regeneration compared to some ironman ripoff