Fly Me to the Moon, Vol. 12

Nasa lands a teaching job—at an all-girls school! He's about to discover his students' spicy secrets, Tsukasa's capacity for petty jealousy, and whatever's going on between online slacker Aya and Ginga, who is definitely not a gangster. But Nasa uncovers something truly unexpected when he happens upon plans for spaceflight. Twelve volumes in, is someone finally going to fly someone to the moon?

Volume 12 of the Fly Me to the Moon manga series by Kenjiro Hata.