The only thing I can remember is that a guy wanted to be a chair so his crush could sit on him. It is similar to pet shop boys. Thanks already for your help.
Ike reibun's manga.it's one of it as for the cover, i don't remember
This? https://myreadingmanga.info/aniya-yuiji-kangoku-69-nightingale-cries-night-2-eng/ Or this? https://myreadingmanga.info/abee-hachi-fujiko-katekyo-hitman-reborn-dj-isu-chair-eng/
The only thing I can remember is that a guy wanted to be a chair so his crush could sit on him. It is similar to pet shop boys. Thanks already for your help.