It's a high-tech love triangle! College student 'Yul' Yurugi develops "DD," a conversational AI with the voice, personality, and manner of speaking modeled entirely after himself. To boost its conversational function, he entrusts DD's core to a gentleman expert in AI development. “Your voice is lovely and sweet... I could fall for you.” Yul eavesdrops on their training sessions but, the sweet words addressed to DD felt as if it's him that is being seduced, and his heart is now unwittingly pounding? (Source: MU)

From good morning to good night, working like a horse, aiming for the betterment of Japan’s tomorrow… that is the duty of a civil servant (Koh-Boku), a public official of Kasumigaseki.

One such Koh-Boku, Kyuu-san, has Kashiwagi by his side, a super-elite who is a dozen years his junior. Even though he thinks that he really should push his junior to stand on his own, he couldn’t bear to be parted from the pleasure of working passionately every day with Kashiwagi… but a cozy relationship that could turn romantic…?!