Reitama's manga / #slice of life(312)

Isao falls for Koutarou who raises his son, Zen. He finds out that Koutarou is the husband of the old florist who he admired as a child. With his love of flowers, he [insert a nice word for flirt?]. His colleague, Satou, from the company he used to work at, follows him to work at the flower shop. Once Isao and Koutarou's feelings are requited, Satou takes on the responsibility to protect Isao's chastity [LOL, Satou's cute], but fails miserably while he waits outside in the cold. [Note: I'm horrible at English so I struggle to find words.]