The Dashing Zaddy and His Icy Protégé Vol. 1 (Kodansha, 2025)

The second sales division at Itsuboshi Trading Company is headed up by Mr. Takanashi, one of the firm's top performer and a charismatic knockout at age 40. One of his subordinates is the equally hot, cool and calculating 26-year-old, Hiwatari. Practically every woman at the company has attempted to stir up an office romance with the magnetic Takanashi, but this dashing zaddy has turned them all down, because...he secretly has ED! Meanwhile, Hiwatari seems like a scary robot on the outside, but he's actually looked up to Takanashi since he started working with him four years ago. When Hiwatari gets a chance to spend the evening with Takanashi, he reveals more than he means to! An irresistible love comedy between a hot older man with a shameful secret and a cunning underling who becomes an unlikely confidant in his quest to once more stand proud and, ahem...erect!