She just broke up with his brother and he asked her to be his girlfriend!
Okay, has he considered his brother's feelings? (That's a kind of rhythm duck that seems to have been greened by his own brother...)
So cool~, none of this is the point. The point is that she just had some thoughts, such as not treating him as her younger brother, and then the apocalypse came, and it came without any warning...
Highlights:
①The male and female protagonists are childhood sweethearts and have known each other since childhood. The female protagonist is slightly older than the male protagonist (a few months older~)
②The heroine has dated the hero's brother (you have never held hands before, you know~)
③Finally, this article he (the author is so shameless, please kindly accept it if you pass by O(≧▽≦)O)
Intention: