Is Happy Birthday, Sayonara still ongoing?

Happy Birthday, Sayonara is currently finished. It has 1 chapters.

FINISHEDONE_SHOT★ 2.8 #175

Happy Birthday, Sayonara

ハッピーバースデー、さよなら

I thought I could be free, when I grew up.

(Source: Comic Days, translated)

Note: Debut Grand Prize winner in the 18th Monthly Shonen Magazine Comic Award.

Fueru Tsuma

Mugen Tengoku

Chainsaw Man

Story & Art

What is Happy Birthday, Sayonara about?: I thought I could be free, when I grew up. (Source: Comic Days, translated) Note: Debut Grand Prize winner in the 18th Monthly Shonen Magazine Comic Award.
Is Happy Birthday, Sayonara still ongoing?: Happy Birthday, Sayonara is currently finished. It has 1 chapters.