A drama story about Natsuka, his best friend and his sex friend. Natsuka has been in love with his best friend, Hakushima, for four years without any gain. Though not wanting to stain his best friend and their friendship he never confesses. To divert his feelings from Hakushima, Natsuka embraces his sex friend, Seno, as a substitute. One day, Seno ends up running over Hakushima while on his motorcycle and this leaves Hakushima unconscious. Later, Seno wakes up saying "I am Hakushima." Natsuka comes up with the idea of embracing his sex friend who now has Hakushima's soul inside. (Source: Shodensha, translated)

Kakkou no Yume was published digitally in English as The Dream of the Cuckoos by Fantasista Inc. through futekiya from December 5, 2019, to February 6, 2020. It was also published in French by Boy's Love IDP under the Hana Collection imprint on September 24, 2018; and in Spanish by Milky Way Ediciones from September 26, 2019, to November 29, 2019.