第1話: ルシファーはディアボロ王立学園における兄弟たちの学業成績向上のため、家族勉強会を企画する。

Fearful of what their recent test results could mean for them at the Royal Academy of Diavolo, the eldest of the seven brothers, Lucifer, sits his brothers down for a much-needed family study group to up their average. However, when his brothers struggle to focus and get any study done, Lucifer must take drastic measures to stop them from slacking off. (Source: Funimation)

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