Sakamoto desu ga? - Vol. 2 Ch. 9 - The Summer of Sakamoto's Disappearance

[MangaDex]

 

[Churkey]

I only had know of the waxing and waning moons because of earth and space science.
Got to build a group rocket, although it failed halfway through flight though.

 

[SpecialProjectY]

I can't believe it's not a yaoi.