Otoko no Ko to Natsu no Junbi

[MangaDex]

 

[DEXdimon]

What the fuck is this? This can hardly count as manga, can it?
Mangas, like comic books and bande desinees, is a type of sequencial art, which implies at least 2 frames that follow one another to create said sequence. This is just an illustration.

 

[BakedBanana]

Looks like there is a continuation that came out in 2025:
https://www.pixiv.net/en/artworks/135257337