Kitto Oujisama ga nante

Sakura, who continues to live alone even after reaching the age of 30, decides to marry in order to reassure his parents. But the truth is... he's an otomen who likes cute stuff and is a closet gay man. Keeping these circumstances hidden, he goes to a marriage counselor and reunites with his younger childhood friend Yuusuke by chance.

(Source: Core Magazine, translated)