searching for manhwa

helo guys i'm not sure if i was the one who hallucinated it but a few days ago i stumbled upon this one manhwa (im pretty sure it's not jpn and chn) where the summary written there is roughly about ; a guy who can't cum/finish/climax until he receives help from the "love interest"(name is written here but i forgot)...

and it doesn't seem lika a new story too i think im going crazy i've searched every trace but i couldn't find it bro it's starting to feel like it was a fever dream