The Deputy Wants To Do It
Green flag, sane love. New younger cute employee top + senior employee bottom.
My New Boss Is Goofy
No love nor sex. A new employee is surprised and happy to have met a new manager who is kind and cute ( and goofy). The same goes for another new employee with another manager. They get along very well and are kind and cute. There's also the anime
My Boss is a Giant: He Manages My Every Need With Enormous Skill – The Complete Collection
Green flag, sane love. I don't like her: she always behaves like a shy virgin teen even after they are engaged
Kashikomarimashita, Destiny
Two couples, green flag, sane love, (younger and masters) omega+alfa, (their older butlers) alfa + beta
Cherry Magic! Thirty Years of Virginity Can Make You a Wizard?!
Sane love, green flags. The MC can read minds because he's thirty and still virgin. The same goes for his friend. The MC finds out his best coworker likes him and falls for him too. His friend falls for a younger guy who's a delivery man and a dancer.
My Invincible Vitality
Sane love, green flags, two couples
Yukyu omega
Sane love, green flag. The omega is used to fake his heat in order to have 3 days off each month; his new alpha coworker goes to him to help and falls for him
Sonna ni Iu Nara Daiteyaru