Fly Me to the Moon, Vol. 33

Determined to find out what Tsukasa's deal is, Himari tags along on the class trip to Hokkaido. But she may get in deeper than she planned, especially when she wades into the local sand baths! Meanwhile, Nasa's romance-obsessed students are determined to give Nasa and Tsukasa a night the couple will never forget—no matter how hard they try.

Volume 33 of the Fly Me to the Moon manga series by Kenjiro Hata.