Sekai no Owari, kun ni Koishita - Vol. 1 Ch. 1

[MangaDex]

 

[RavenMark316]

Their child will make a manga called "rent-a-girlfriend" and cause the death of degenoricity (i miss you man)

 

[kiwipea]

Oh... their daughter is junko enoshima aka the ultimate despaaaaiirrrrr