Kekkon Dekinai Otokotachi

From Fantasyshrine: "How about a love relationship with me?" Felino Felice, fully staffed with gorgeous men, this restaurant is a secret haven known only to a few. One day, Kido Ryusei, an entrepreneur and a regular, becomes smitten with the waiter, Ichinose Kazuki. However, the stubborn Kazuki can’t be wooed in a conventional way. Only when Kazuki opens his heart will the pair have a chance for their love to blossom and grow… A character from Tenshi no Tamagoryouri, Kurahashi Eiji, is the owner of Felino Felice.