Chikyuu no Houkago - Vol. 3 Ch. 16 - Just the Two of Us on Earth

[MangaDex]

 

[deproxyacct]

We got a badass over here...

 

[Yuu_Jin]

Who would ever imagined that humankind extinction will be caused by tsundere

 

[ExarchOfAfrica]

Eh, it was more fun when Masashi wasn't a genius in every way...