Osananajimi Joushi ni Fall in Love

As he wished, Toono is transferred to an architecture firm and introduced to the person responsible for instructing him, Mizusawa, his childhood friend. He works as an assistant director and remains as handsome as ever and even more promising. Toono is reunited with his childhood friend who becomes his boss and is unable to get to grips with a situation, but when he meets Mizusawa as he is today, he begins to face his feelings.

(Source: NewPOP, translated)