The Princess a Little Cute (2021)

Both deal with a prince falling in love with an assasin. The female assasin becomes the prince's girlfriend in both dramas.

Both deal with assasins and royalty, though Princess A Little Cute is much more of a comedy than Assassin Academy.

Both are short web dramas which deal with assassins for hire, and both have both comedy and drama in them.

Both are mini dramas with an assassin FL.
..............................................................................

Both are mini dramas with a spy FL.
............................................................................................

Both are mini dramas with a spy FL.
............................................................................................

Both are historical mini dramas in which the assassin FL infiltrates the ML's home in order to kill him, but the two fall in love.

Both are historical mini dramas with an assassin FL.
..............................................................................