 If you liked
Steins;Gate
|
 ...then you might like
Ageha
|
Ageha's plot is striking similar to one of the arcs in Steins;Gate, in which the protagonist goes back in time to save a girl, but ends up failing every time and gets stuck in a time loop.
Although both mangas deals mainly with the theme of the "butterfly effect", Ageha takes a more comedic and absurd approach to it, while Steins;Gate is deeper and more serious.