High‑school senior Teppei Kobayashi lost his parents in a car accident. The only remaining relative was his grandfather, about whom the family mostly stayed silent. And there was a reason—Isshin Arima, his maternal grandfather, firmly holds the levers of Japan"s economy as one of the world"s financial magnates. Teppei"s mother married against her father"s will, but Isshin accepted his daughter"s decision and did not interfere in her family"s life. Now everything is simple—there was no heir from the son‑in‑law, so they need to prepare a grandson. Moreover, Teppei grew up away from big money not as a playboy or a greenhouse plant, but as a solid, decent guy, and his character didn"t falter. But first the candidate for inheritance must be tested and refined a bit, so Isshin sends the name‑changed grandson to an academy where children are not just of ordinary people, but of very extraordinary ones (for example, European monarchs). A prominent, capable and honest young man who brought a breath of fresh air into society is instantly taken up by the academy"s first beauties—the elegant Princess Charlotte, the "knight in a skirt" Princess Sylvia, and the "fashion princess" supermodel Seika. It should be noted that he met each of them under very romantic circumstances. And our Teppei also has a personal maid named Yu.